cashu/nuts/
nut02.rs

1//! NUT-02: Keysets and keyset ID
2//!
3//! <https://github.com/cashubtc/nuts/blob/main/02.md>
4
5use core::fmt;
6use core::str::FromStr;
7use std::array::TryFromSliceError;
8#[cfg(feature = "mint")]
9use std::collections::BTreeMap;
10
11#[cfg(feature = "mint")]
12use bitcoin::bip32::{ChildNumber, DerivationPath, Xpriv};
13use bitcoin::hashes::sha256::Hash as Sha256;
14use bitcoin::hashes::Hash;
15#[cfg(feature = "mint")]
16use bitcoin::key::Secp256k1;
17#[cfg(feature = "mint")]
18use bitcoin::secp256k1;
19use serde::{Deserialize, Deserializer, Serialize};
20use serde_with::{serde_as, VecSkipError};
21use thiserror::Error;
22
23use super::nut01::Keys;
24#[cfg(feature = "mint")]
25use super::nut01::{MintKeyPair, MintKeys};
26use crate::nuts::nut00::CurrencyUnit;
27use crate::util::hex;
28use crate::{ensure_cdk, Amount};
29
30/// NUT02 Error
31#[derive(Debug, Error)]
32pub enum Error {
33    /// Hex Error
34    #[error(transparent)]
35    HexError(#[from] hex::Error),
36    /// Keyset length error
37    #[error("NUT02: ID length invalid, expected 8 bytes (short/v1) or 33 bytes (v2)")]
38    Length,
39    /// Unknown version
40    #[error("NUT02: Unknown Version")]
41    UnknownVersion,
42    /// Keyset id does not match
43    #[error("Keyset id incorrect")]
44    IncorrectKeysetId,
45    /// Short keyset id does not match any of the provided IDv2s
46    #[error("Short keyset id does not match any of the provided IDv2s")]
47    UnknownShortKeysetId,
48    /// Short keyset id is ill-formed
49    #[error("Short keyset id is ill-formed")]
50    MalformedShortKeysetId,
51    /// Slice Error
52    #[error(transparent)]
53    Slice(#[from] TryFromSliceError),
54}
55
56/// Keyset version
57#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
58#[cfg_attr(feature = "swagger", derive(utoipa::ToSchema))]
59pub enum KeySetVersion {
60    /// Version 00
61    Version00,
62    /// Version 01
63    Version01,
64}
65
66impl KeySetVersion {
67    /// [`KeySetVersion`] to byte
68    pub fn to_byte(&self) -> u8 {
69        match self {
70            Self::Version00 => 0,
71            Self::Version01 => 1,
72        }
73    }
74
75    /// [`KeySetVersion`] from byte
76    pub fn from_byte(byte: &u8) -> Result<Self, Error> {
77        match byte {
78            0 => Ok(Self::Version00),
79            1 => Ok(Self::Version01),
80            _ => Err(Error::UnknownVersion),
81        }
82    }
83
84    /// [`KeySetVersion`] from proto value
85    pub fn from_proto_i32(value: i32) -> Result<Self, Error> {
86        match value {
87            1 => Ok(Self::Version00),
88            2 => Ok(Self::Version01),
89            _ => Err(Error::UnknownVersion),
90        }
91    }
92
93    /// [`KeySetVersion`] to proto value
94    pub fn to_proto_i32(&self) -> i32 {
95        match self {
96            Self::Version00 => 1,
97            Self::Version01 => 2,
98        }
99    }
100}
101
102impl fmt::Display for KeySetVersion {
103    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
104        match self {
105            KeySetVersion::Version00 => f.write_str("00"),
106            KeySetVersion::Version01 => f.write_str("01"),
107        }
108    }
109}
110
111/// Keyset ID bytes
112#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
113#[cfg_attr(feature = "swagger", derive(utoipa::ToSchema))]
114pub enum IdBytes {
115    /// Bytes for v1
116    V1([u8; 7]),
117    /// Bytes for v2
118    V2([u8; 32]),
119}
120
121impl IdBytes {
122    /// Convert [`IdBytes`] to [`Vec<u8>`]
123    pub fn to_vec(&self) -> Vec<u8> {
124        match self {
125            IdBytes::V1(bytes) => bytes.to_vec(),
126            IdBytes::V2(bytes) => bytes.to_vec(),
127        }
128    }
129}
130
131/// A keyset ID is an identifier for a specific keyset. It can be derived by
132/// anyone who knows the set of public keys of a mint. The keyset ID **CAN**
133/// be stored in a Cashu token such that the token can be used to identify
134/// which mint or keyset it was generated from.
135#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
136#[serde(into = "String", try_from = "String")]
137#[cfg_attr(feature = "swagger", derive(utoipa::ToSchema))]
138pub struct Id {
139    version: KeySetVersion,
140    id: IdBytes,
141}
142
143impl Id {
144    const STRLEN_V1: usize = 14;
145    const BYTELEN_V1: usize = 7;
146    const STRLEN_V2: usize = 64;
147    const BYTELEN_V2: usize = 32;
148
149    /// [`Id`] to bytes
150    pub fn to_bytes(&self) -> Vec<u8> {
151        [vec![self.version.to_byte()], self.id.to_vec()].concat()
152    }
153
154    /// [`Id`] from bytes
155    pub fn from_bytes(bytes: &[u8]) -> Result<Self, Error> {
156        let version = KeySetVersion::from_byte(&bytes[0])?;
157        let id = match version {
158            KeySetVersion::Version00 => IdBytes::V1(bytes[1..].try_into()?),
159            KeySetVersion::Version01 => IdBytes::V2(bytes[1..].try_into()?),
160        };
161        Ok(Self { version, id })
162    }
163
164    /// Get the version of the keyset
165    pub fn get_version(&self) -> KeySetVersion {
166        self.version
167    }
168
169    /// *** V2 KEYSET ***
170    /// create [`Id`] v2 from keys, unit and (optionally) expiry
171    /// 1 - sort public keys by their amount in ascending order
172    /// 2 - concatenate all public keys to one byte array
173    /// 3 - concatenate the lowercase unit string to the byte array (e.g. "unit:sat")
174    /// 4 - If a final expiration is specified, convert it into a radix-10 string and concatenate it (e.g "final_expiry:1896187313")
175    /// 5 - HASH_SHA256 the concatenated byte array and take the first 31 bytes
176    /// 6 - prefix it with a keyset ID version byte
177    ///
178    /// # Panics
179    ///
180    /// This function will not panic under normal circumstances as the hash output
181    /// is always valid hex and the correct length.
182    pub fn v2_from_data(
183        map: &Keys,
184        unit: &CurrencyUnit,
185        input_fee_ppk: u64,
186        expiry: Option<u64>,
187    ) -> Self {
188        let mut keys: Vec<(&Amount, &super::PublicKey)> = map.iter().collect();
189        keys.sort_by_key(|(amt, _v)| *amt);
190
191        let keys_string = keys
192            .iter()
193            .map(|(amt, pubkey)| format!("{}:{}", amt, hex::encode(pubkey.to_bytes())))
194            .collect::<Vec<String>>()
195            .join(",");
196
197        let mut data = keys_string;
198        data.push_str(&format!("|unit:{}", unit));
199
200        if input_fee_ppk > 0 {
201            data.push_str(&format!("|input_fee_ppk:{}", input_fee_ppk));
202        }
203
204        if let Some(expiry) = expiry {
205            if expiry > 0 {
206                data.push_str(&format!("|final_expiry:{}", expiry));
207            }
208        }
209
210        let hash = Sha256::hash(data.as_bytes());
211        let hex_of_hash = hex::encode(hash.to_byte_array());
212
213        Self {
214            version: KeySetVersion::Version01,
215            id: IdBytes::V2(
216                hex::decode(&hex_of_hash[0..Self::STRLEN_V2])
217                    .expect("Keys hash could not be hex decoded")
218                    .try_into()
219                    .expect("Invalid length of hex id"),
220            ),
221        }
222    }
223
224    /// *** V1 VERSION ***
225    /// As per NUT-02:
226    ///   1. sort public keys by their amount in ascending order
227    ///   2. concatenate all public keys to one string
228    ///   3. HASH_SHA256 the concatenated public keys
229    ///   4. take the first 14 characters of the hex-encoded hash
230    ///   5. prefix it with a keyset ID version byte
231    ///
232    /// # Panics
233    ///
234    /// This function will not panic under normal circumstances as the hash output
235    /// is always valid hex and the correct length.
236    pub fn v1_from_keys(map: &Keys) -> Self {
237        let mut keys: Vec<(&Amount, &super::PublicKey)> = map.iter().collect();
238        keys.sort_by_key(|(amt, _v)| *amt);
239
240        let pubkeys_concat: Vec<u8> = keys
241            .iter()
242            .map(|(_, pubkey)| pubkey.to_bytes())
243            .collect::<Vec<[u8; 33]>>()
244            .concat();
245
246        let hash = Sha256::hash(&pubkeys_concat);
247        let hex_of_hash = hex::encode(hash.to_byte_array());
248
249        Self {
250            version: KeySetVersion::Version00,
251            id: IdBytes::V1(
252                hex::decode(&hex_of_hash[0..Self::STRLEN_V1])
253                    .expect("Keys hash could not be hex decoded")
254                    .try_into()
255                    .expect("Invalid length of hex id"),
256            ),
257        }
258    }
259
260    /// Selects the correct IDv2 from a list of keysets and the given short-id
261    /// or returns the short-id in the case of v1.
262    pub fn from_short_keyset_id(
263        short_id: &ShortKeysetId,
264        keysets_info: &[KeySetInfo],
265    ) -> Result<Self, Error> {
266        // Check prefix length
267        if short_id.prefix.len() < Self::BYTELEN_V1 || short_id.prefix.len() > Self::BYTELEN_V2 {
268            return Err(Error::MalformedShortKeysetId);
269        }
270
271        match short_id.version {
272            KeySetVersion::Version00 => {
273                let mut idbytes: [u8; Self::BYTELEN_V1] = [0u8; Self::BYTELEN_V1];
274                idbytes.copy_from_slice(&short_id.prefix[..Self::BYTELEN_V1]);
275                Ok(Self {
276                    version: short_id.version,
277                    id: IdBytes::V1(idbytes),
278                })
279            }
280            KeySetVersion::Version01 => {
281                // We return the first match or error
282                for keyset_info in keysets_info.iter() {
283                    if keyset_info.id.id.to_vec()[..short_id.prefix.len()] == short_id.prefix {
284                        return Ok(keyset_info.id);
285                    }
286                }
287                Err(Error::UnknownShortKeysetId)
288            }
289        }
290    }
291}
292
293// Used to generate a compressed unique identifier as part of the NUT13 spec
294// This is a one-way function
295impl From<Id> for u32 {
296    fn from(value: Id) -> Self {
297        let id_bytes = value.to_bytes();
298        let mut hex_bytes: [u8; 8] = [0; 8];
299        hex_bytes.copy_from_slice(&id_bytes[..8]);
300
301        let int = u64::from_be_bytes(hex_bytes);
302
303        (int % (2_u64.pow(31) - 1)) as u32
304    }
305}
306
307impl fmt::Display for Id {
308    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
309        let hex_id = match self.id {
310            IdBytes::V1(id) => hex::encode(id),
311            IdBytes::V2(id) => hex::encode(id),
312        };
313        f.write_str(&format!("{}{}", self.version, hex_id))
314    }
315}
316
317impl fmt::Debug for Id {
318    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
319        let hex_id = match self.id {
320            IdBytes::V1(id) => hex::encode(id),
321            IdBytes::V2(id) => hex::encode(id),
322        };
323        f.write_str(&format!("{}{}", self.version, hex_id))
324    }
325}
326
327impl TryFrom<String> for Id {
328    type Error = Error;
329
330    fn try_from(s: String) -> Result<Self, Self::Error> {
331        // Check that string is ASCII (required for hex) to avoid panics on byte slicing
332        // with multi-byte UTF-8 characters
333        ensure_cdk!(
334            s.is_ascii(),
335            Error::HexError(hex::Error::InvalidHexCharacter {
336                c: s.chars().find(|c| !c.is_ascii()).unwrap_or('\0'),
337                index: s.chars().position(|c| !c.is_ascii()).unwrap_or(0),
338            })
339        );
340
341        ensure_cdk!(
342            s.len() == Self::STRLEN_V1 + 2 || s.len() == Self::STRLEN_V2 + 2,
343            Error::Length
344        );
345
346        let version: KeySetVersion = KeySetVersion::from_byte(&hex::decode(&s[..2])?[0])?;
347        let id = match version {
348            KeySetVersion::Version00 => IdBytes::V1(
349                hex::decode(&s[2..])?
350                    .try_into()
351                    .map_err(|_| Error::Length)?,
352            ),
353            KeySetVersion::Version01 => IdBytes::V2(
354                hex::decode(&s[2..])?
355                    .try_into()
356                    .map_err(|_| Error::Length)?,
357            ),
358        };
359
360        Ok(Self { version, id })
361    }
362}
363
364impl FromStr for Id {
365    type Err = Error;
366
367    fn from_str(s: &str) -> Result<Self, Self::Err> {
368        Self::try_from(s.to_string())
369    }
370}
371
372impl From<Id> for String {
373    fn from(value: Id) -> Self {
374        value.to_string()
375    }
376}
377
378/// Improper prefix of the keyset ID. In case of v1, this is the whole ID.
379/// In case of v2, this is the 8-byte prefix
380#[derive(Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
381#[serde(into = "String", try_from = "String")]
382#[cfg_attr(feature = "swagger", derive(utoipa::ToSchema))]
383pub struct ShortKeysetId {
384    /// The version of the short keyset
385    version: KeySetVersion,
386    /// The improper prefix of the keyset ID bytes
387    prefix: Vec<u8>,
388}
389
390impl ShortKeysetId {
391    /// [`ShortKeysetId`] to bytes
392    pub fn to_bytes(&self) -> Vec<u8> {
393        [vec![self.version.to_byte()], self.prefix.clone()].concat()
394    }
395
396    /// [`ShortKeysetId`] from bytes
397    pub fn from_bytes(bytes: &[u8]) -> Result<Self, Error> {
398        if bytes.is_empty() {
399            return Err(Error::Length);
400        }
401
402        let version = KeySetVersion::from_byte(&bytes[0])?;
403        let prefix = bytes[1..].to_vec();
404        Ok(Self { version, prefix })
405    }
406}
407
408impl From<Id> for ShortKeysetId {
409    fn from(id: Id) -> Self {
410        let version = id.version;
411        let prefix: Vec<u8> = match id.version {
412            KeySetVersion::Version00 => match id.id {
413                IdBytes::V1(idbytes) => Vec::from(&idbytes),
414                _ => panic!("Unexpected IdBytes length"),
415            },
416            KeySetVersion::Version01 => match id.id {
417                IdBytes::V2(idbytes) => Vec::from(&idbytes[..7]),
418                _ => panic!("Unexpected IdBytes length"),
419            },
420        };
421
422        Self { version, prefix }
423    }
424}
425
426impl fmt::Display for ShortKeysetId {
427    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
428        let hex_id = hex::encode(&self.prefix);
429        f.write_str(&format!("{}{}", self.version, hex_id))
430    }
431}
432
433impl fmt::Debug for ShortKeysetId {
434    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
435        let hex_id = hex::encode(&self.prefix);
436        f.write_str(&format!("{}{}", self.version, hex_id))
437    }
438}
439
440impl TryFrom<String> for ShortKeysetId {
441    type Error = Error;
442
443    fn try_from(s: String) -> Result<Self, Self::Error> {
444        // Check that string is ASCII (required for hex) to avoid panics on byte slicing
445        // with multi-byte UTF-8 characters
446        ensure_cdk!(
447            s.is_ascii(),
448            Error::HexError(hex::Error::InvalidHexCharacter {
449                c: s.chars().find(|c| !c.is_ascii()).unwrap_or('\0'),
450                index: s.chars().position(|c| !c.is_ascii()).unwrap_or(0),
451            })
452        );
453
454        ensure_cdk!(s.len() == 16, Error::Length);
455
456        let version: KeySetVersion = KeySetVersion::from_byte(&hex::decode(&s[..2])?[0])?;
457        let prefix = hex::decode(&s[2..])?;
458
459        Ok(Self { version, prefix })
460    }
461}
462
463impl FromStr for ShortKeysetId {
464    type Err = Error;
465
466    fn from_str(s: &str) -> Result<Self, Self::Err> {
467        Self::try_from(s.to_string())
468    }
469}
470
471impl From<ShortKeysetId> for String {
472    fn from(value: ShortKeysetId) -> Self {
473        value.to_string()
474    }
475}
476
477/// Mint Keysets [NUT-02]
478/// Ids of mints keyset ids
479#[serde_as]
480#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
481#[cfg_attr(feature = "swagger", derive(utoipa::ToSchema))]
482pub struct KeysetResponse {
483    /// set of public key ids that the mint generates
484    #[serde_as(as = "VecSkipError<_>")]
485    pub keysets: Vec<KeySetInfo>,
486}
487
488/// Keyset
489#[derive(Debug, Clone, PartialEq, Eq, Deserialize, Serialize)]
490#[cfg_attr(feature = "swagger", derive(utoipa::ToSchema))]
491pub struct KeySet {
492    /// Keyset [`Id`]
493    #[cfg_attr(feature = "swagger", schema(value_type = String))]
494    pub id: Id,
495    /// Keyset [`CurrencyUnit`]
496    pub unit: CurrencyUnit,
497    /// Keyset state - indicates whether the mint will sign new outputs with this keyset
498    #[serde(skip_serializing_if = "Option::is_none")]
499    pub active: Option<bool>,
500    /// Keyset [`Keys`]
501    pub keys: Keys,
502    /// Input Fee PPK
503    #[serde(default)]
504    pub input_fee_ppk: u64,
505    /// Expiry
506    #[serde(skip_serializing_if = "Option::is_none")]
507    pub final_expiry: Option<u64>,
508}
509
510impl KeySet {
511    /// Verify the keyset id matches keys
512    pub fn verify_id(&self) -> Result<(), Error> {
513        let keys_id = match self.id.version {
514            KeySetVersion::Version00 => Id::v1_from_keys(&self.keys),
515            KeySetVersion::Version01 => Id::v2_from_data(
516                &self.keys,
517                &self.unit,
518                self.input_fee_ppk,
519                self.final_expiry,
520            ),
521        };
522
523        ensure_cdk!(
524            u32::from(keys_id) == u32::from(self.id),
525            Error::IncorrectKeysetId
526        );
527
528        ensure_cdk!(keys_id == self.id, Error::IncorrectKeysetId);
529
530        Ok(())
531    }
532}
533
534/// KeySetInfo
535#[derive(Debug, Clone, Hash, PartialEq, Eq, Deserialize, Serialize)]
536#[cfg_attr(feature = "swagger", derive(utoipa::ToSchema))]
537pub struct KeySetInfo {
538    /// Keyset [`Id`]
539    #[cfg_attr(feature = "swagger", schema(value_type = String))]
540    pub id: Id,
541    /// Keyset [`CurrencyUnit`]
542    pub unit: CurrencyUnit,
543    /// Keyset state
544    /// Mint will only sign from an active keyset
545    pub active: bool,
546    /// Input Fee PPK
547    #[serde(
548        deserialize_with = "deserialize_input_fee_ppk",
549        default = "default_input_fee_ppk"
550    )]
551    pub input_fee_ppk: u64,
552    /// Expiry of the keyset
553    #[serde(skip_serializing_if = "Option::is_none")]
554    pub final_expiry: Option<u64>,
555}
556
557/// List of [KeySetInfo]
558pub type KeySetInfos = Vec<KeySetInfo>;
559
560/// Utility methods for [KeySetInfos]
561pub trait KeySetInfosMethods {
562    /// Filter for active keysets
563    fn active(&self) -> impl Iterator<Item = &KeySetInfo> + '_;
564
565    /// Filter keysets for specific unit
566    fn unit(&self, unit: CurrencyUnit) -> impl Iterator<Item = &KeySetInfo> + '_;
567}
568
569impl KeySetInfosMethods for KeySetInfos {
570    fn active(&self) -> impl Iterator<Item = &KeySetInfo> + '_ {
571        self.iter().filter(|k| k.active)
572    }
573
574    fn unit(&self, unit: CurrencyUnit) -> impl Iterator<Item = &KeySetInfo> + '_ {
575        self.iter().filter(move |k| k.unit == unit)
576    }
577}
578
579fn deserialize_input_fee_ppk<'de, D>(deserializer: D) -> Result<u64, D::Error>
580where
581    D: Deserializer<'de>,
582{
583    // This will either give us a u64 or null (which becomes None)
584    let opt = Option::<u64>::deserialize(deserializer)?;
585    Ok(opt.unwrap_or_else(default_input_fee_ppk))
586}
587
588fn default_input_fee_ppk() -> u64 {
589    0
590}
591
592#[cfg(feature = "mint")]
593/// MintKeyset
594#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
595pub struct MintKeySet {
596    /// Keyset [`Id`]
597    pub id: Id,
598    /// Keyset [`CurrencyUnit`]
599    pub unit: CurrencyUnit,
600    /// Keyset [`MintKeys`]
601    pub keys: MintKeys,
602    /// Input Fee PPK
603    #[serde(default)]
604    pub input_fee_ppk: u64,
605    #[serde(skip_serializing_if = "Option::is_none")]
606    /// Expiry [`Option<u64>`]
607    pub final_expiry: Option<u64>,
608}
609
610#[cfg(feature = "mint")]
611impl MintKeySet {
612    /// Generate new [`MintKeySet`]
613    ///
614    /// # Panics
615    ///
616    /// This function will panic if the RNG fails or if key derivation fails,
617    /// which should not happen under normal circumstances.
618    pub fn generate<C: secp256k1::Signing>(
619        secp: &Secp256k1<C>,
620        xpriv: Xpriv,
621        unit: CurrencyUnit,
622        amounts: &[u64],
623        input_fee_ppk: u64,
624        final_expiry: Option<u64>,
625        version: KeySetVersion,
626    ) -> Self {
627        let mut map = BTreeMap::new();
628        for (i, amount) in amounts.iter().enumerate() {
629            let secret_key = xpriv
630                .derive_priv(
631                    secp,
632                    &[ChildNumber::from_hardened_idx(i as u32).expect("order is valid index")],
633                )
634                .expect("RNG busted")
635                .private_key;
636            let public_key = secret_key.public_key(secp);
637            map.insert(
638                amount.into(),
639                MintKeyPair {
640                    secret_key: secret_key.into(),
641                    public_key: public_key.into(),
642                },
643            );
644        }
645
646        let keys = MintKeys::new(map);
647        let id = match version {
648            KeySetVersion::Version00 => Id::v1_from_keys(&keys.clone().into()),
649            KeySetVersion::Version01 => {
650                Id::v2_from_data(&keys.clone().into(), &unit, input_fee_ppk, final_expiry)
651            }
652        };
653        Self {
654            id,
655            unit,
656            keys,
657            input_fee_ppk,
658            final_expiry,
659        }
660    }
661
662    /// Generate new [`MintKeySet`] from seed
663    ///
664    /// # Panics
665    ///
666    /// This function will panic if the RNG fails or if key derivation fails,
667    /// which should not happen under normal circumstances.
668    #[allow(clippy::too_many_arguments)]
669    pub fn generate_from_seed<C: secp256k1::Signing>(
670        secp: &Secp256k1<C>,
671        seed: &[u8],
672        amounts: &[u64],
673        currency_unit: CurrencyUnit,
674        derivation_path: DerivationPath,
675        input_fee_ppk: u64,
676        final_expiry: Option<u64>,
677        version: KeySetVersion,
678    ) -> Self {
679        let xpriv = Xpriv::new_master(bitcoin::Network::Bitcoin, seed).expect("RNG busted");
680        Self::generate(
681            secp,
682            xpriv
683                .derive_priv(secp, &derivation_path)
684                .expect("RNG busted"),
685            currency_unit,
686            amounts,
687            input_fee_ppk,
688            final_expiry,
689            version,
690        )
691    }
692
693    /// Generate new [`MintKeySet`] from xpriv
694    ///
695    /// # Panics
696    ///
697    /// This function will panic if the RNG fails or if key derivation fails,
698    /// which should not happen under normal circumstances.
699    #[allow(clippy::too_many_arguments)]
700    pub fn generate_from_xpriv<C: secp256k1::Signing>(
701        secp: &Secp256k1<C>,
702        xpriv: Xpriv,
703        amounts: &[u64],
704        currency_unit: CurrencyUnit,
705        derivation_path: DerivationPath,
706        input_fee_ppk: u64,
707        final_expiry: Option<u64>,
708        version: KeySetVersion,
709    ) -> Self {
710        Self::generate(
711            secp,
712            xpriv
713                .derive_priv(secp, &derivation_path)
714                .expect("RNG busted"),
715            currency_unit,
716            amounts,
717            input_fee_ppk,
718            final_expiry,
719            version,
720        )
721    }
722}
723
724#[cfg(feature = "mint")]
725impl From<MintKeySet> for Id {
726    fn from(keyset: MintKeySet) -> Id {
727        let keys: Keys = keyset.keys.into();
728        match keyset.id.version {
729            KeySetVersion::Version00 => Id::v1_from_keys(&keys),
730            KeySetVersion::Version01 => Id::v2_from_data(
731                &keys,
732                &keyset.unit,
733                keyset.input_fee_ppk,
734                keyset.final_expiry,
735            ),
736        }
737    }
738}
739
740#[cfg(feature = "mint")]
741impl From<&MintKeys> for Id {
742    fn from(map: &MintKeys) -> Self {
743        let keys: super::Keys = map.clone().into();
744
745        Id::v1_from_keys(&keys)
746    }
747}
748
749#[cfg(test)]
750mod test {
751    use std::str::FromStr;
752
753    use bitcoin::secp256k1::rand::{self, RngCore};
754
755    use super::{KeySetInfo, KeySetVersion, Keys, KeysetResponse, ShortKeysetId};
756    use crate::nuts::nut02::{Error, Id};
757    use crate::nuts::KeysResponse;
758    use crate::util::hex;
759    use crate::CurrencyUnit;
760
761    const SHORT_KEYSET_ID: &str = "00456a94ab4e1c46";
762    const SHORT_KEYSET: &str = r#"
763        {
764            "1":"03a40f20667ed53513075dc51e715ff2046cad64eb68960632269ba7f0210e38bc",
765            "2":"03fd4ce5a16b65576145949e6f99f445f8249fee17c606b688b504a849cdc452de",
766            "4":"02648eccfa4c026960966276fa5a4cae46ce0fd432211a4f449bf84f13aa5f8303",
767            "8":"02fdfd6796bfeac490cbee12f778f867f0a2c68f6508d17c649759ea0dc3547528"
768        }
769    "#;
770
771    const KEYSET_ID: &str = "000f01df73ea149a";
772    const KEYSET: &str = r#"
773        {
774            "1":"03ba786a2c0745f8c30e490288acd7a72dd53d65afd292ddefa326a4a3fa14c566",
775            "2":"03361cd8bd1329fea797a6add1cf1990ffcf2270ceb9fc81eeee0e8e9c1bd0cdf5",
776            "4":"036e378bcf78738ddf68859293c69778035740e41138ab183c94f8fee7572214c7",
777            "8":"03909d73beaf28edfb283dbeb8da321afd40651e8902fcf5454ecc7d69788626c0",
778            "16":"028a36f0e6638ea7466665fe174d958212723019ec08f9ce6898d897f88e68aa5d",
779            "32":"03a97a40e146adee2687ac60c2ba2586a90f970de92a9d0e6cae5a4b9965f54612",
780            "64":"03ce86f0c197aab181ddba0cfc5c5576e11dfd5164d9f3d4a3fc3ffbbf2e069664",
781            "128":"0284f2c06d938a6f78794814c687560a0aabab19fe5e6f30ede38e113b132a3cb9",
782            "256":"03b99f475b68e5b4c0ba809cdecaae64eade2d9787aa123206f91cd61f76c01459",
783            "512":"03d4db82ea19a44d35274de51f78af0a710925fe7d9e03620b84e3e9976e3ac2eb",
784            "1024":"031fbd4ba801870871d46cf62228a1b748905ebc07d3b210daf48de229e683f2dc",
785            "2048":"0276cedb9a3b160db6a158ad4e468d2437f021293204b3cd4bf6247970d8aff54b",
786            "4096":"02fc6b89b403ee9eb8a7ed457cd3973638080d6e04ca8af7307c965c166b555ea2",
787            "8192":"0320265583e916d3a305f0d2687fcf2cd4e3cd03a16ea8261fda309c3ec5721e21",
788            "16384":"036e41de58fdff3cb1d8d713f48c63bc61fa3b3e1631495a444d178363c0d2ed50",
789            "32768":"0365438f613f19696264300b069d1dad93f0c60a37536b72a8ab7c7366a5ee6c04",
790            "65536":"02408426cfb6fc86341bac79624ba8708a4376b2d92debdf4134813f866eb57a8d",
791            "131072":"031063e9f11c94dc778c473e968966eac0e70b7145213fbaff5f7a007e71c65f41",
792            "262144":"02f2a3e808f9cd168ec71b7f328258d0c1dda250659c1aced14c7f5cf05aab4328",
793            "524288":"038ac10de9f1ff9395903bb73077e94dbf91e9ef98fd77d9a2debc5f74c575bc86",
794            "1048576":"0203eaee4db749b0fc7c49870d082024b2c31d889f9bc3b32473d4f1dfa3625788",
795            "2097152":"033cdb9d36e1e82ae652b7b6a08e0204569ec7ff9ebf85d80a02786dc7fe00b04c",
796            "4194304":"02c8b73f4e3a470ae05e5f2fe39984d41e9f6ae7be9f3b09c9ac31292e403ac512",
797            "8388608":"025bbe0cfce8a1f4fbd7f3a0d4a09cb6badd73ef61829dc827aa8a98c270bc25b0",
798            "16777216":"037eec3d1651a30a90182d9287a5c51386fe35d4a96839cf7969c6e2a03db1fc21",
799            "33554432":"03280576b81a04e6abd7197f305506476f5751356b7643988495ca5c3e14e5c262",
800            "67108864":"03268bfb05be1dbb33ab6e7e00e438373ca2c9b9abc018fdb452d0e1a0935e10d3",
801            "134217728":"02573b68784ceba9617bbcc7c9487836d296aa7c628c3199173a841e7a19798020",
802            "268435456":"0234076b6e70f7fbf755d2227ecc8d8169d662518ee3a1401f729e2a12ccb2b276",
803            "536870912":"03015bd88961e2a466a2163bd4248d1d2b42c7c58a157e594785e7eb34d880efc9",
804            "1073741824":"02c9b076d08f9020ebee49ac8ba2610b404d4e553a4f800150ceb539e9421aaeee",
805            "2147483648":"034d592f4c366afddc919a509600af81b489a03caf4f7517c2b3f4f2b558f9a41a",
806            "4294967296":"037c09ecb66da082981e4cbdb1ac65c0eb631fc75d85bed13efb2c6364148879b5",
807            "8589934592":"02b4ebb0dda3b9ad83b39e2e31024b777cc0ac205a96b9a6cfab3edea2912ed1b3",
808            "17179869184":"026cc4dacdced45e63f6e4f62edbc5779ccd802e7fabb82d5123db879b636176e9",
809            "34359738368":"02b2cee01b7d8e90180254459b8f09bbea9aad34c3a2fd98c85517ecfc9805af75",
810            "68719476736":"037a0c0d564540fc574b8bfa0253cca987b75466e44b295ed59f6f8bd41aace754",
811            "137438953472":"021df6585cae9b9ca431318a713fd73dbb76b3ef5667957e8633bca8aaa7214fb6",
812            "274877906944":"02b8f53dde126f8c85fa5bb6061c0be5aca90984ce9b902966941caf963648d53a",
813            "549755813888":"029cc8af2840d59f1d8761779b2496623c82c64be8e15f9ab577c657c6dd453785",
814            "1099511627776":"03e446fdb84fad492ff3a25fc1046fb9a93a5b262ebcd0151caa442ea28959a38a",
815            "2199023255552":"02d6b25bd4ab599dd0818c55f75702fde603c93f259222001246569018842d3258",
816            "4398046511104":"03397b522bb4e156ec3952d3f048e5a986c20a00718e5e52cd5718466bf494156a",
817            "8796093022208":"02d1fb9e78262b5d7d74028073075b80bb5ab281edcfc3191061962c1346340f1e",
818            "17592186044416":"030d3f2ad7a4ca115712ff7f140434f802b19a4c9b2dd1c76f3e8e80c05c6a9310",
819            "35184372088832":"03e325b691f292e1dfb151c3fb7cad440b225795583c32e24e10635a80e4221c06",
820            "70368744177664":"03bee8f64d88de3dee21d61f89efa32933da51152ddbd67466bef815e9f93f8fd1",
821            "140737488355328":"0327244c9019a4892e1f04ba3bf95fe43b327479e2d57c25979446cc508cd379ed",
822            "281474976710656":"02fb58522cd662f2f8b042f8161caae6e45de98283f74d4e99f19b0ea85e08a56d",
823            "562949953421312":"02adde4b466a9d7e59386b6a701a39717c53f30c4810613c1b55e6b6da43b7bc9a",
824            "1125899906842624":"038eeda11f78ce05c774f30e393cda075192b890d68590813ff46362548528dca9",
825            "2251799813685248":"02ec13e0058b196db80f7079d329333b330dc30c000dbdd7397cbbc5a37a664c4f",
826            "4503599627370496":"02d2d162db63675bd04f7d56df04508840f41e2ad87312a3c93041b494efe80a73",
827            "9007199254740992":"0356969d6aef2bb40121dbd07c68b6102339f4ea8e674a9008bb69506795998f49",
828            "18014398509481984":"02f4e667567ebb9f4e6e180a4113bb071c48855f657766bb5e9c776a880335d1d6",
829            "36028797018963968":"0385b4fe35e41703d7a657d957c67bb536629de57b7e6ee6fe2130728ef0fc90b0",
830            "72057594037927936":"02b2bc1968a6fddbcc78fb9903940524824b5f5bed329c6ad48a19b56068c144fd",
831            "144115188075855872":"02e0dbb24f1d288a693e8a49bc14264d1276be16972131520cf9e055ae92fba19a",
832            "288230376151711744":"03efe75c106f931a525dc2d653ebedddc413a2c7d8cb9da410893ae7d2fa7d19cc",
833            "576460752303423488":"02c7ec2bd9508a7fc03f73c7565dc600b30fd86f3d305f8f139c45c404a52d958a",
834            "1152921504606846976":"035a6679c6b25e68ff4e29d1c7ef87f21e0a8fc574f6a08c1aa45ff352c1d59f06",
835            "2305843009213693952":"033cdc225962c052d485f7cfbf55a5b2367d200fe1fe4373a347deb4cc99e9a099",
836            "4611686018427387904":"024a4b806cf413d14b294719090a9da36ba75209c7657135ad09bc65328fba9e6f",
837            "9223372036854775808":"0377a6fe114e291a8d8e991627c38001c8305b23b9e98b1c7b1893f5cd0dda6cad"
838        }
839    "#;
840
841    #[test]
842    fn test_deserialization_and_id_generation() {
843        let _id = Id::from_str("009a1f293253e41e").unwrap();
844
845        let keys: Keys = serde_json::from_str(SHORT_KEYSET).unwrap();
846
847        let id: Id = Id::v1_from_keys(&keys);
848
849        assert_eq!(id, Id::from_str(SHORT_KEYSET_ID).unwrap());
850
851        let keys: Keys = serde_json::from_str(KEYSET).unwrap();
852
853        let id: Id = Id::v1_from_keys(&keys);
854
855        assert_eq!(id, Id::from_str(KEYSET_ID).unwrap());
856    }
857
858    #[test]
859    fn test_v2_deserialization_and_id_generation() {
860        let unit: CurrencyUnit = CurrencyUnit::from_str("sat").unwrap();
861        let expiry: u64 = 2059210353; // +10 years from now
862        let input_fee_ppk = 100;
863
864        let keys: Keys = serde_json::from_str(SHORT_KEYSET).unwrap();
865        let id_from_str =
866            Id::from_str("015ba18a8adcd02e715a58358eb618da4a4b3791151a4bee5e968bb88406ccf76a")
867                .unwrap();
868        let id = Id::v2_from_data(&keys, &unit, input_fee_ppk, Some(expiry));
869        assert_eq!(id, id_from_str);
870
871        let keys: Keys = serde_json::from_str(KEYSET).unwrap();
872        let id_from_str =
873            Id::from_str("01ab6aa4ff30390da34986d84be5274b48ad7a74265d791095bfc39f4098d9764f")
874                .unwrap();
875        let id = Id::v2_from_data(&keys, &unit, 0, Some(expiry));
876        assert_eq!(id, id_from_str);
877
878        let id = Id::v2_from_data(&keys, &unit, 0, None);
879        let id_from_str =
880            Id::from_str("012fbb01a4e200c76df911eeba3b8fe1831202914b24664f4bccbd25852a6708f8")
881                .unwrap();
882        assert_eq!(id, id_from_str);
883    }
884
885    #[test]
886    fn test_deserialization_keyset_info() {
887        let h = r#"{"id":"009a1f293253e41e","unit":"sat","active":true}"#;
888
889        let _keyset_response: KeySetInfo = serde_json::from_str(h).unwrap();
890
891        let h = r#"{"id":"009a1f293253e41e","unit":"sat","active":true, "input_fee_ppk":null}"#;
892
893        let _keyset_response: KeySetInfo = serde_json::from_str(h).unwrap();
894    }
895
896    #[test]
897    fn test_deserialization_of_keyset_response() {
898        let h = r#"{"keysets":[{"id":"009a1f293253e41e","unit":"sat","active":true, "input_fee_ppk": 100},{"id":"eGnEWtdJ0PIM","unit":"sat","active":true},{"id":"003dfdf4e5e35487","unit":"sat","active":true},{"id":"0066ad1a4b6fc57c","unit":"sat","active":true},{"id":"00f7ca24d44c3e5e","unit":"sat","active":true},{"id":"001fcea2931f2d85","unit":"sat","active":true},{"id":"00d095959d940edb","unit":"sat","active":true},{"id":"000d7f730d657125","unit":"sat","active":true},{"id":"0007208d861d7295","unit":"sat","active":true},{"id":"00bfdf8889b719dd","unit":"sat","active":true},{"id":"00ca9b17da045f21","unit":"sat","active":true}]}"#;
899
900        let _keyset_response: KeysetResponse = serde_json::from_str(h).unwrap();
901    }
902
903    #[test]
904    fn test_to_int() {
905        let id = Id::from_str("009a1f293253e41e").unwrap();
906
907        let id_int = u32::from(id);
908        assert_eq!(864559728, id_int)
909    }
910
911    #[test]
912    fn test_v2_to_int() {
913        let id = Id::from_str("01adc013fa9d85171586660abab27579888611659d357bc86bc09cb26eee8bc035")
914            .unwrap();
915
916        let id_int = u32::from(id);
917        assert_eq!(2113471806, id_int);
918    }
919
920    #[test]
921    fn test_id_from_invalid_byte_length() {
922        let three_bytes = [0x01, 0x02, 0x03];
923        let result = Id::from_bytes(&three_bytes);
924        assert!(result.is_err(), "Expected an invalid byte length error");
925    }
926
927    #[test]
928    fn test_keyset_bytes() {
929        let id = Id::from_str("009a1f293253e41e").unwrap();
930
931        let id_bytes = id.to_bytes();
932
933        assert_eq!(id_bytes.len(), 8);
934
935        let id_from_bytes = Id::from_bytes(&id_bytes).unwrap();
936
937        assert_eq!(id_from_bytes, id);
938    }
939
940    #[test]
941    fn test_keyset_version_proto_mapping() {
942        assert_eq!(
943            KeySetVersion::from_proto_i32(1).unwrap(),
944            KeySetVersion::Version00
945        );
946        assert_eq!(
947            KeySetVersion::from_proto_i32(2).unwrap(),
948            KeySetVersion::Version01
949        );
950        assert!(matches!(
951            KeySetVersion::from_proto_i32(0),
952            Err(Error::UnknownVersion)
953        ));
954
955        assert_eq!(KeySetVersion::Version00.to_proto_i32(), 1);
956        assert_eq!(KeySetVersion::Version01.to_proto_i32(), 2);
957    }
958
959    #[test]
960    fn test_deserialization_keys_response() {
961        let keys = r#"{"keysets":[{"id":"I2yN+iRYfkzT","unit":"sat","keys":{"1":"03ba786a2c0745f8c30e490288acd7a72dd53d65afd292ddefa326a4a3fa14c566","2":"03361cd8bd1329fea797a6add1cf1990ffcf2270ceb9fc81eeee0e8e9c1bd0cdf5","4":"036e378bcf78738ddf68859293c69778035740e41138ab183c94f8fee7572214c7","8":"03909d73beaf28edfb283dbeb8da321afd40651e8902fcf5454ecc7d69788626c0","16":"028a36f0e6638ea7466665fe174d958212723019ec08f9ce6898d897f88e68aa5d","32":"03a97a40e146adee2687ac60c2ba2586a90f970de92a9d0e6cae5a4b9965f54612","64":"03ce86f0c197aab181ddba0cfc5c5576e11dfd5164d9f3d4a3fc3ffbbf2e069664","128":"0284f2c06d938a6f78794814c687560a0aabab19fe5e6f30ede38e113b132a3cb9","256":"03b99f475b68e5b4c0ba809cdecaae64eade2d9787aa123206f91cd61f76c01459","512":"03d4db82ea19a44d35274de51f78af0a710925fe7d9e03620b84e3e9976e3ac2eb","1024":"031fbd4ba801870871d46cf62228a1b748905ebc07d3b210daf48de229e683f2dc","2048":"0276cedb9a3b160db6a158ad4e468d2437f021293204b3cd4bf6247970d8aff54b","4096":"02fc6b89b403ee9eb8a7ed457cd3973638080d6e04ca8af7307c965c166b555ea2","8192":"0320265583e916d3a305f0d2687fcf2cd4e3cd03a16ea8261fda309c3ec5721e21","16384":"036e41de58fdff3cb1d8d713f48c63bc61fa3b3e1631495a444d178363c0d2ed50","32768":"0365438f613f19696264300b069d1dad93f0c60a37536b72a8ab7c7366a5ee6c04","65536":"02408426cfb6fc86341bac79624ba8708a4376b2d92debdf4134813f866eb57a8d","131072":"031063e9f11c94dc778c473e968966eac0e70b7145213fbaff5f7a007e71c65f41","262144":"02f2a3e808f9cd168ec71b7f328258d0c1dda250659c1aced14c7f5cf05aab4328","524288":"038ac10de9f1ff9395903bb73077e94dbf91e9ef98fd77d9a2debc5f74c575bc86","1048576":"0203eaee4db749b0fc7c49870d082024b2c31d889f9bc3b32473d4f1dfa3625788","2097152":"033cdb9d36e1e82ae652b7b6a08e0204569ec7ff9ebf85d80a02786dc7fe00b04c","4194304":"02c8b73f4e3a470ae05e5f2fe39984d41e9f6ae7be9f3b09c9ac31292e403ac512","8388608":"025bbe0cfce8a1f4fbd7f3a0d4a09cb6badd73ef61829dc827aa8a98c270bc25b0","16777216":"037eec3d1651a30a90182d9287a5c51386fe35d4a96839cf7969c6e2a03db1fc21","33554432":"03280576b81a04e6abd7197f305506476f5751356b7643988495ca5c3e14e5c262","67108864":"03268bfb05be1dbb33ab6e7e00e438373ca2c9b9abc018fdb452d0e1a0935e10d3","134217728":"02573b68784ceba9617bbcc7c9487836d296aa7c628c3199173a841e7a19798020","268435456":"0234076b6e70f7fbf755d2227ecc8d8169d662518ee3a1401f729e2a12ccb2b276","536870912":"03015bd88961e2a466a2163bd4248d1d2b42c7c58a157e594785e7eb34d880efc9","1073741824":"02c9b076d08f9020ebee49ac8ba2610b404d4e553a4f800150ceb539e9421aaeee","2147483648":"034d592f4c366afddc919a509600af81b489a03caf4f7517c2b3f4f2b558f9a41a","4294967296":"037c09ecb66da082981e4cbdb1ac65c0eb631fc75d85bed13efb2c6364148879b5","8589934592":"02b4ebb0dda3b9ad83b39e2e31024b777cc0ac205a96b9a6cfab3edea2912ed1b3","17179869184":"026cc4dacdced45e63f6e4f62edbc5779ccd802e7fabb82d5123db879b636176e9","34359738368":"02b2cee01b7d8e90180254459b8f09bbea9aad34c3a2fd98c85517ecfc9805af75","68719476736":"037a0c0d564540fc574b8bfa0253cca987b75466e44b295ed59f6f8bd41aace754","137438953472":"021df6585cae9b9ca431318a713fd73dbb76b3ef5667957e8633bca8aaa7214fb6","274877906944":"02b8f53dde126f8c85fa5bb6061c0be5aca90984ce9b902966941caf963648d53a","549755813888":"029cc8af2840d59f1d8761779b2496623c82c64be8e15f9ab577c657c6dd453785","1099511627776":"03e446fdb84fad492ff3a25fc1046fb9a93a5b262ebcd0151caa442ea28959a38a","2199023255552":"02d6b25bd4ab599dd0818c55f75702fde603c93f259222001246569018842d3258","4398046511104":"03397b522bb4e156ec3952d3f048e5a986c20a00718e5e52cd5718466bf494156a","8796093022208":"02d1fb9e78262b5d7d74028073075b80bb5ab281edcfc3191061962c1346340f1e","17592186044416":"030d3f2ad7a4ca115712ff7f140434f802b19a4c9b2dd1c76f3e8e80c05c6a9310","35184372088832":"03e325b691f292e1dfb151c3fb7cad440b225795583c32e24e10635a80e4221c06","70368744177664":"03bee8f64d88de3dee21d61f89efa32933da51152ddbd67466bef815e9f93f8fd1","140737488355328":"0327244c9019a4892e1f04ba3bf95fe43b327479e2d57c25979446cc508cd379ed","281474976710656":"02fb58522cd662f2f8b042f8161caae6e45de98283f74d4e99f19b0ea85e08a56d","562949953421312":"02adde4b466a9d7e59386b6a701a39717c53f30c4810613c1b55e6b6da43b7bc9a","1125899906842624":"038eeda11f78ce05c774f30e393cda075192b890d68590813ff46362548528dca9","2251799813685248":"02ec13e0058b196db80f7079d329333b330dc30c000dbdd7397cbbc5a37a664c4f","4503599627370496":"02d2d162db63675bd04f7d56df04508840f41e2ad87312a3c93041b494efe80a73","9007199254740992":"0356969d6aef2bb40121dbd07c68b6102339f4ea8e674a9008bb69506795998f49","18014398509481984":"02f4e667567ebb9f4e6e180a4113bb071c48855f657766bb5e9c776a880335d1d6","36028797018963968":"0385b4fe35e41703d7a657d957c67bb536629de57b7e6ee6fe2130728ef0fc90b0","72057594037927936":"02b2bc1968a6fddbcc78fb9903940524824b5f5bed329c6ad48a19b56068c144fd","144115188075855872":"02e0dbb24f1d288a693e8a49bc14264d1276be16972131520cf9e055ae92fba19a","288230376151711744":"03efe75c106f931a525dc2d653ebedddc413a2c7d8cb9da410893ae7d2fa7d19cc","576460752303423488":"02c7ec2bd9508a7fc03f73c7565dc600b30fd86f3d305f8f139c45c404a52d958a","1152921504606846976":"035a6679c6b25e68ff4e29d1c7ef87f21e0a8fc574f6a08c1aa45ff352c1d59f06","2305843009213693952":"033cdc225962c052d485f7cfbf55a5b2367d200fe1fe4373a347deb4cc99e9a099","4611686018427387904":"024a4b806cf413d14b294719090a9da36ba75209c7657135ad09bc65328fba9e6f","9223372036854775808":"0377a6fe114e291a8d8e991627c38001c8305b23b9e98b1c7b1893f5cd0dda6cad"}},{"id":"00759e3f8b06b36f","unit":"sat","keys":{"1":"038a935c51c76c780ff9731cfbe9ab477f38346775809fa4c514340feabbec4b3a","2":"038288b12ebf2db3645e5d58835bd100398b6b19dfef338c698b55c05d0d41fb0a","4":"02fc8201cf4ea29abac0495d1304064f0e698762b8c0db145c1737b38a9d61c7e2","8":"02274243e03ca19f969acc7072812405b38adc672d1d753e65c63746b3f31cc6eb","16":"025f07cb2493351e7d5202f05eaf3934d5c9d17e73385e9de5bfab802f7d8caf92","32":"03afce0a897c858d7c88c1454d492eac43011e3396dda5b778ba1fcab381c748b1","64":"037b2178f42507f0c95e09d9b435a127df4b3e23ccd20af8075817d3abe90947ad","128":"02ebce8457b48407d4d248dba5a31b3eabf08a6285d09d08e40681c4adaf77bd40","256":"03c89713d27d6f8e328597b43dd87623efdcb251a484932f9e095ebfb6dbf4bdf2","512":"02df10f3ebba69916d03ab1754488770498f2e5466224d6df6d12811a13e46776c","1024":"02f5d9cba0502c21c6b39938a09dcb0390f124a2fd65e45dfeccd153cc1864273d","2048":"039de1dad91761b194e7674fb6ba212241aaf7f49dcb578a8fe093196ad1b20d1c","4096":"03cc694ba22e455f1c22b2cee4a40ecdd4f3bb4da0745411adb456158372d3efbb","8192":"029d66c24450fc315e046010df6870d61daa90c5c486c5ec4d7d3b99c5c2bce923","16384":"0387d063821010c7bd5cf79441870182f70cd432d13d3fc255e7b6ffd82c9d3c5a","32768":"021a94c6c03f7de8feb25b8a8b8d1f1c6f56af4bc533eb97c9e8b89c76b616ff11","65536":"038989c6ed91a7c577953115b465ee400a270a64e95eda8f7ee9d6bf30b8fe4908","131072":"03c3d3cd2523f004ee479a170b0ec5c74c060edb8356fc1b0a9ed8087cf6345172","262144":"02e54a7546f1a9194f30baa593a13d4e2949eb866593445d89675d7d394ef6320b","524288":"034e91037b3f1d3258d1e871dede80e98ef83e307c2e5ff589f38bd046f97546f8","1048576":"03306d42752a1adcfa394af2a690961ac9b80b1ac0f5fdc0890f66f8dc7d25ac6e","2097152":"03ec114332fe798c3e36675566c4748fda7d881000a01864ec48486512d7901e76","4194304":"02095e3e443d98ca3dfabcebc2f9154f3656b889783f7edb8290cfb01f497e63cf","8388608":"03c90f31525a4f9ab6562ec3edbf2bafc6662256ea6ce82ab19a45d2aee80b2f15","16777216":"03c0ae897a45724465c713c1379671ac5ff0a81c32e5f2dd27ea7e5530c7af484c","33554432":"034bcf793b70ba511e9c84cd07fc0c73c061e912bc02df4cac7871d048bad653b6","67108864":"021c6826c23a181d14962f43121943569a54f9d5af556eb839aee42d3f62debee6","134217728":"030e1bc651b6496922978d6cd3ed923cbf12b4332c496f841f506f5abf9d186d35","268435456":"03e3219e50cf389a75794f82ab4f880f5ffe9ca227b992c3e93cb4bb659d8e3353","536870912":"03879ad42536c410511ac6956b9da2d0da59ce7fbb6068bd9b25dd7cccddcc8096","1073741824":"03c4d3755a17904c0cfa7d7a21cc5b4e85fca8ac85369fcb12a6e2177525117dee","2147483648":"02e7a5d5cd3ea24f05f741dddad3dc8c5e24db60eb9bf9ad888b1c5dfbd792665e","4294967296":"03c783d24d8c9e51207eb3d6199bf48d6eb81a4b34103b422724be15501ff921bd","8589934592":"03200234495725455f4c4e6b6cb7b7936eb7cd1d1c9bb73d2ce032bae7d728b3ca","17179869184":"02eafa50ac67de2c206d1a67245b72ec20fac081c2a550294cc0a711246ed65a41","34359738368":"024c153c2a56de05860006aff9dc35ec9cafd7ac68708442a3a326c858b0c1a146","68719476736":"035a890c2d5c8bf259b98ac67d0d813b87778bcb0c0ea1ee9717ac804b0be3f563","137438953472":"025184ca832f08b105fdb471e2caf14025a1daa6f44ce90b4c7703878ccb6b26e8","274877906944":"039d19a41abdd49949c60672430018c63f27c5a28991f9fbb760499daccc63146c","549755813888":"03a138ac626dd3e6753459903aa128a13c052ed0058f2ead707c203bd4a7565237","1099511627776":"0298c8ef2eab728613103481167102efaf2d4b7a303cb94b9393da37a034a95c53","2199023255552":"02d88f8fc93cd2edf303fdebfecb70e59b5373cb8f746a1d075a9c86bc9382ac07","4398046511104":"02afd89ee23eee7d5fe6687fee898f64e9b01913ec71b5c596762b215e040c701f","8796093022208":"02196b461f3c804259e597c50e514920427aab4beaef0c666185fb2ff4399813db","17592186044416":"037b33746a6fd7a71d4cf17c85d13a64b98620614c0028d4995163f1b8484ee337","35184372088832":"036cce0a1878bbc63b3108c379ef4e6529fbf20ed675d80d91ca3ccc55fde4bdbd","70368744177664":"039c81dccb319ba70597cdf9db33b459164a1515c27366c8f667b01d988874e554","140737488355328":"036b2dd85a3c44c4458f0b246ce19a1524a191f1716834cfb452c6e1f946172c19","281474976710656":"022c84722c31a2b3d8cfd9b6a9e6199515fd97d6a9c390fc3d82f123bfc501ad04","562949953421312":"0355e2be85ee599b8fa7e6e68a9954573d032e89aa9e65c2e1231991664c200bf3","1125899906842624":"024b10818cd27f3eec6c9daf82b9dfa53928ab0711b711070bd39892ac10dee765","2251799813685248":"02a6d726432bb18c3145eba4fc0b587bf64f3be8617c0070dda33944474b3f8740","4503599627370496":"0248304be3cbaf31ec320bc636bb936c5984caf773df950fc44c6237ec09c557a1","9007199254740992":"03a3c0e9da7ece7d7b132c53662c0389bd87db801dff5ac9edd9f46699cb1dc065","18014398509481984":"03b6c4c874e2392072e17fbfd181afbd40d6766a8ca4cf932264ba98d98de1328c","36028797018963968":"0370dca4416ec6e30ff02f8e9db7804348b42e3f5c22099dfc896fa1b2ccbe7a69","72057594037927936":"0226250140aedb79de91cb4cc7350884bde229063f34ee0849081bb391a37c273e","144115188075855872":"02baef3a94d241aee9d6057c7a7ee7424f8a0bcb910daf6c49ddcabf70ffbc77d8","288230376151711744":"030f95a12369f1867ce0dbf2a6322c27d70c61b743064d76cfc81dd43f1a052ae6","576460752303423488":"021bc89118ab6eb1fbebe0fa6cc76da8236a7991163475a73a22d8efd016a45800","1152921504606846976":"03b0c1e658d7ca12830a0b590ea5a4d6db51084ae80b6d8abf27ad2d762209acd1","2305843009213693952":"0266926ce658a0bdae934071f22e09dbb6ecaff2a4dc4b1f8e23626570d993b48e","4611686018427387904":"03ac17f10f9bb745ebd8ee9cdca1b6981f5a356147d431196c21c6d4869402bde0","9223372036854775808":"037ab5b88c8ce34c4a3970be5c6f75b8a7a5493a12ef56a1c9ba9ff5f90de46fcc"}},{"id":"000f01df73ea149a","unit":"sat","keys":{"1":"03ba786a2c0745f8c30e490288acd7a72dd53d65afd292ddefa326a4a3fa14c566","2":"03361cd8bd1329fea797a6add1cf1990ffcf2270ceb9fc81eeee0e8e9c1bd0cdf5","4":"036e378bcf78738ddf68859293c69778035740e41138ab183c94f8fee7572214c7","8":"03909d73beaf28edfb283dbeb8da321afd40651e8902fcf5454ecc7d69788626c0","16":"028a36f0e6638ea7466665fe174d958212723019ec08f9ce6898d897f88e68aa5d","32":"03a97a40e146adee2687ac60c2ba2586a90f970de92a9d0e6cae5a4b9965f54612","64":"03ce86f0c197aab181ddba0cfc5c5576e11dfd5164d9f3d4a3fc3ffbbf2e069664","128":"0284f2c06d938a6f78794814c687560a0aabab19fe5e6f30ede38e113b132a3cb9","256":"03b99f475b68e5b4c0ba809cdecaae64eade2d9787aa123206f91cd61f76c01459","512":"03d4db82ea19a44d35274de51f78af0a710925fe7d9e03620b84e3e9976e3ac2eb","1024":"031fbd4ba801870871d46cf62228a1b748905ebc07d3b210daf48de229e683f2dc","2048":"0276cedb9a3b160db6a158ad4e468d2437f021293204b3cd4bf6247970d8aff54b","4096":"02fc6b89b403ee9eb8a7ed457cd3973638080d6e04ca8af7307c965c166b555ea2","8192":"0320265583e916d3a305f0d2687fcf2cd4e3cd03a16ea8261fda309c3ec5721e21","16384":"036e41de58fdff3cb1d8d713f48c63bc61fa3b3e1631495a444d178363c0d2ed50","32768":"0365438f613f19696264300b069d1dad93f0c60a37536b72a8ab7c7366a5ee6c04","65536":"02408426cfb6fc86341bac79624ba8708a4376b2d92debdf4134813f866eb57a8d","131072":"031063e9f11c94dc778c473e968966eac0e70b7145213fbaff5f7a007e71c65f41","262144":"02f2a3e808f9cd168ec71b7f328258d0c1dda250659c1aced14c7f5cf05aab4328","524288":"038ac10de9f1ff9395903bb73077e94dbf91e9ef98fd77d9a2debc5f74c575bc86","1048576":"0203eaee4db749b0fc7c49870d082024b2c31d889f9bc3b32473d4f1dfa3625788","2097152":"033cdb9d36e1e82ae652b7b6a08e0204569ec7ff9ebf85d80a02786dc7fe00b04c","4194304":"02c8b73f4e3a470ae05e5f2fe39984d41e9f6ae7be9f3b09c9ac31292e403ac512","8388608":"025bbe0cfce8a1f4fbd7f3a0d4a09cb6badd73ef61829dc827aa8a98c270bc25b0","16777216":"037eec3d1651a30a90182d9287a5c51386fe35d4a96839cf7969c6e2a03db1fc21","33554432":"03280576b81a04e6abd7197f305506476f5751356b7643988495ca5c3e14e5c262","67108864":"03268bfb05be1dbb33ab6e7e00e438373ca2c9b9abc018fdb452d0e1a0935e10d3","134217728":"02573b68784ceba9617bbcc7c9487836d296aa7c628c3199173a841e7a19798020","268435456":"0234076b6e70f7fbf755d2227ecc8d8169d662518ee3a1401f729e2a12ccb2b276","536870912":"03015bd88961e2a466a2163bd4248d1d2b42c7c58a157e594785e7eb34d880efc9","1073741824":"02c9b076d08f9020ebee49ac8ba2610b404d4e553a4f800150ceb539e9421aaeee","2147483648":"034d592f4c366afddc919a509600af81b489a03caf4f7517c2b3f4f2b558f9a41a","4294967296":"037c09ecb66da082981e4cbdb1ac65c0eb631fc75d85bed13efb2c6364148879b5","8589934592":"02b4ebb0dda3b9ad83b39e2e31024b777cc0ac205a96b9a6cfab3edea2912ed1b3","17179869184":"026cc4dacdced45e63f6e4f62edbc5779ccd802e7fabb82d5123db879b636176e9","34359738368":"02b2cee01b7d8e90180254459b8f09bbea9aad34c3a2fd98c85517ecfc9805af75","68719476736":"037a0c0d564540fc574b8bfa0253cca987b75466e44b295ed59f6f8bd41aace754","137438953472":"021df6585cae9b9ca431318a713fd73dbb76b3ef5667957e8633bca8aaa7214fb6","274877906944":"02b8f53dde126f8c85fa5bb6061c0be5aca90984ce9b902966941caf963648d53a","549755813888":"029cc8af2840d59f1d8761779b2496623c82c64be8e15f9ab577c657c6dd453785","1099511627776":"03e446fdb84fad492ff3a25fc1046fb9a93a5b262ebcd0151caa442ea28959a38a","2199023255552":"02d6b25bd4ab599dd0818c55f75702fde603c93f259222001246569018842d3258","4398046511104":"03397b522bb4e156ec3952d3f048e5a986c20a00718e5e52cd5718466bf494156a","8796093022208":"02d1fb9e78262b5d7d74028073075b80bb5ab281edcfc3191061962c1346340f1e","17592186044416":"030d3f2ad7a4ca115712ff7f140434f802b19a4c9b2dd1c76f3e8e80c05c6a9310","35184372088832":"03e325b691f292e1dfb151c3fb7cad440b225795583c32e24e10635a80e4221c06","70368744177664":"03bee8f64d88de3dee21d61f89efa32933da51152ddbd67466bef815e9f93f8fd1","140737488355328":"0327244c9019a4892e1f04ba3bf95fe43b327479e2d57c25979446cc508cd379ed","281474976710656":"02fb58522cd662f2f8b042f8161caae6e45de98283f74d4e99f19b0ea85e08a56d","562949953421312":"02adde4b466a9d7e59386b6a701a39717c53f30c4810613c1b55e6b6da43b7bc9a","1125899906842624":"038eeda11f78ce05c774f30e393cda075192b890d68590813ff46362548528dca9","2251799813685248":"02ec13e0058b196db80f7079d329333b330dc30c000dbdd7397cbbc5a37a664c4f","4503599627370496":"02d2d162db63675bd04f7d56df04508840f41e2ad87312a3c93041b494efe80a73","9007199254740992":"0356969d6aef2bb40121dbd07c68b6102339f4ea8e674a9008bb69506795998f49","18014398509481984":"02f4e667567ebb9f4e6e180a4113bb071c48855f657766bb5e9c776a880335d1d6","36028797018963968":"0385b4fe35e41703d7a657d957c67bb536629de57b7e6ee6fe2130728ef0fc90b0","72057594037927936":"02b2bc1968a6fddbcc78fb9903940524824b5f5bed329c6ad48a19b56068c144fd","144115188075855872":"02e0dbb24f1d288a693e8a49bc14264d1276be16972131520cf9e055ae92fba19a","288230376151711744":"03efe75c106f931a525dc2d653ebedddc413a2c7d8cb9da410893ae7d2fa7d19cc","576460752303423488":"02c7ec2bd9508a7fc03f73c7565dc600b30fd86f3d305f8f139c45c404a52d958a","1152921504606846976":"035a6679c6b25e68ff4e29d1c7ef87f21e0a8fc574f6a08c1aa45ff352c1d59f06","2305843009213693952":"033cdc225962c052d485f7cfbf55a5b2367d200fe1fe4373a347deb4cc99e9a099","4611686018427387904":"024a4b806cf413d14b294719090a9da36ba75209c7657135ad09bc65328fba9e6f","9223372036854775808":"0377a6fe114e291a8d8e991627c38001c8305b23b9e98b1c7b1893f5cd0dda6cad"}},{"id":"yjzQhxghPdrr","unit":"sat","keys":{"1":"038a935c51c76c780ff9731cfbe9ab477f38346775809fa4c514340feabbec4b3a","2":"038288b12ebf2db3645e5d58835bd100398b6b19dfef338c698b55c05d0d41fb0a","4":"02fc8201cf4ea29abac0495d1304064f0e698762b8c0db145c1737b38a9d61c7e2","8":"02274243e03ca19f969acc7072812405b38adc672d1d753e65c63746b3f31cc6eb","16":"025f07cb2493351e7d5202f05eaf3934d5c9d17e73385e9de5bfab802f7d8caf92","32":"03afce0a897c858d7c88c1454d492eac43011e3396dda5b778ba1fcab381c748b1","64":"037b2178f42507f0c95e09d9b435a127df4b3e23ccd20af8075817d3abe90947ad","128":"02ebce8457b48407d4d248dba5a31b3eabf08a6285d09d08e40681c4adaf77bd40","256":"03c89713d27d6f8e328597b43dd87623efdcb251a484932f9e095ebfb6dbf4bdf2","512":"02df10f3ebba69916d03ab1754488770498f2e5466224d6df6d12811a13e46776c","1024":"02f5d9cba0502c21c6b39938a09dcb0390f124a2fd65e45dfeccd153cc1864273d","2048":"039de1dad91761b194e7674fb6ba212241aaf7f49dcb578a8fe093196ad1b20d1c","4096":"03cc694ba22e455f1c22b2cee4a40ecdd4f3bb4da0745411adb456158372d3efbb","8192":"029d66c24450fc315e046010df6870d61daa90c5c486c5ec4d7d3b99c5c2bce923","16384":"0387d063821010c7bd5cf79441870182f70cd432d13d3fc255e7b6ffd82c9d3c5a","32768":"021a94c6c03f7de8feb25b8a8b8d1f1c6f56af4bc533eb97c9e8b89c76b616ff11","65536":"038989c6ed91a7c577953115b465ee400a270a64e95eda8f7ee9d6bf30b8fe4908","131072":"03c3d3cd2523f004ee479a170b0ec5c74c060edb8356fc1b0a9ed8087cf6345172","262144":"02e54a7546f1a9194f30baa593a13d4e2949eb866593445d89675d7d394ef6320b","524288":"034e91037b3f1d3258d1e871dede80e98ef83e307c2e5ff589f38bd046f97546f8","1048576":"03306d42752a1adcfa394af2a690961ac9b80b1ac0f5fdc0890f66f8dc7d25ac6e","2097152":"03ec114332fe798c3e36675566c4748fda7d881000a01864ec48486512d7901e76","4194304":"02095e3e443d98ca3dfabcebc2f9154f3656b889783f7edb8290cfb01f497e63cf","8388608":"03c90f31525a4f9ab6562ec3edbf2bafc6662256ea6ce82ab19a45d2aee80b2f15","16777216":"03c0ae897a45724465c713c1379671ac5ff0a81c32e5f2dd27ea7e5530c7af484c","33554432":"034bcf793b70ba511e9c84cd07fc0c73c061e912bc02df4cac7871d048bad653b6","67108864":"021c6826c23a181d14962f43121943569a54f9d5af556eb839aee42d3f62debee6","134217728":"030e1bc651b6496922978d6cd3ed923cbf12b4332c496f841f506f5abf9d186d35","268435456":"03e3219e50cf389a75794f82ab4f880f5ffe9ca227b992c3e93cb4bb659d8e3353","536870912":"03879ad42536c410511ac6956b9da2d0da59ce7fbb6068bd9b25dd7cccddcc8096","1073741824":"03c4d3755a17904c0cfa7d7a21cc5b4e85fca8ac85369fcb12a6e2177525117dee","2147483648":"02e7a5d5cd3ea24f05f741dddad3dc8c5e24db60eb9bf9ad888b1c5dfbd792665e","4294967296":"03c783d24d8c9e51207eb3d6199bf48d6eb81a4b34103b422724be15501ff921bd","8589934592":"03200234495725455f4c4e6b6cb7b7936eb7cd1d1c9bb73d2ce032bae7d728b3ca","17179869184":"02eafa50ac67de2c206d1a67245b72ec20fac081c2a550294cc0a711246ed65a41","34359738368":"024c153c2a56de05860006aff9dc35ec9cafd7ac68708442a3a326c858b0c1a146","68719476736":"035a890c2d5c8bf259b98ac67d0d813b87778bcb0c0ea1ee9717ac804b0be3f563","137438953472":"025184ca832f08b105fdb471e2caf14025a1daa6f44ce90b4c7703878ccb6b26e8","274877906944":"039d19a41abdd49949c60672430018c63f27c5a28991f9fbb760499daccc63146c","549755813888":"03a138ac626dd3e6753459903aa128a13c052ed0058f2ead707c203bd4a7565237","1099511627776":"0298c8ef2eab728613103481167102efaf2d4b7a303cb94b9393da37a034a95c53","2199023255552":"02d88f8fc93cd2edf303fdebfecb70e59b5373cb8f746a1d075a9c86bc9382ac07","4398046511104":"02afd89ee23eee7d5fe6687fee898f64e9b01913ec71b5c596762b215e040c701f","8796093022208":"02196b461f3c804259e597c50e514920427aab4beaef0c666185fb2ff4399813db","17592186044416":"037b33746a6fd7a71d4cf17c85d13a64b98620614c0028d4995163f1b8484ee337","35184372088832":"036cce0a1878bbc63b3108c379ef4e6529fbf20ed675d80d91ca3ccc55fde4bdbd","70368744177664":"039c81dccb319ba70597cdf9db33b459164a1515c27366c8f667b01d988874e554","140737488355328":"036b2dd85a3c44c4458f0b246ce19a1524a191f1716834cfb452c6e1f946172c19","281474976710656":"022c84722c31a2b3d8cfd9b6a9e6199515fd97d6a9c390fc3d82f123bfc501ad04","562949953421312":"0355e2be85ee599b8fa7e6e68a9954573d032e89aa9e65c2e1231991664c200bf3","1125899906842624":"024b10818cd27f3eec6c9daf82b9dfa53928ab0711b711070bd39892ac10dee765","2251799813685248":"02a6d726432bb18c3145eba4fc0b587bf64f3be8617c0070dda33944474b3f8740","4503599627370496":"0248304be3cbaf31ec320bc636bb936c5984caf773df950fc44c6237ec09c557a1","9007199254740992":"03a3c0e9da7ece7d7b132c53662c0389bd87db801dff5ac9edd9f46699cb1dc065","18014398509481984":"03b6c4c874e2392072e17fbfd181afbd40d6766a8ca4cf932264ba98d98de1328c","36028797018963968":"0370dca4416ec6e30ff02f8e9db7804348b42e3f5c22099dfc896fa1b2ccbe7a69","72057594037927936":"0226250140aedb79de91cb4cc7350884bde229063f34ee0849081bb391a37c273e","144115188075855872":"02baef3a94d241aee9d6057c7a7ee7424f8a0bcb910daf6c49ddcabf70ffbc77d8","288230376151711744":"030f95a12369f1867ce0dbf2a6322c27d70c61b743064d76cfc81dd43f1a052ae6","576460752303423488":"021bc89118ab6eb1fbebe0fa6cc76da8236a7991163475a73a22d8efd016a45800","1152921504606846976":"03b0c1e658d7ca12830a0b590ea5a4d6db51084ae80b6d8abf27ad2d762209acd1","2305843009213693952":"0266926ce658a0bdae934071f22e09dbb6ecaff2a4dc4b1f8e23626570d993b48e","4611686018427387904":"03ac17f10f9bb745ebd8ee9cdca1b6981f5a356147d431196c21c6d4869402bde0","9223372036854775808":"037ab5b88c8ce34c4a3970be5c6f75b8a7a5493a12ef56a1c9ba9ff5f90de46fcc"}}]}"#;
962
963        let keys_response: KeysResponse = serde_json::from_str(keys).unwrap();
964
965        assert_eq!(keys_response.keysets.len(), 2);
966    }
967
968    fn generate_random_id(version: KeySetVersion) -> Id {
969        match version {
970            KeySetVersion::Version00 => {
971                let mut rand_bytes = vec![0u8; 8];
972                rand::thread_rng().fill_bytes(&mut rand_bytes[1..]);
973                Id::from_bytes(&rand_bytes).unwrap_or_else(|e| {
974                    panic!("Failed to create Id from {}: {e}", hex::encode(rand_bytes))
975                })
976            }
977            KeySetVersion::Version01 => {
978                let mut rand_bytes = vec![1u8; 33];
979                rand::thread_rng().fill_bytes(&mut rand_bytes[1..]);
980                Id::from_bytes(&rand_bytes).unwrap_or_else(|e| {
981                    panic!("Failed to create Id from {}: {e}", hex::encode(rand_bytes))
982                })
983            }
984        }
985    }
986
987    #[test]
988    fn test_id_serialization() {
989        let id = generate_random_id(KeySetVersion::Version00);
990        let id_str = id.to_string();
991
992        assert!(id_str.chars().all(|c| c.is_ascii_hexdigit()));
993        assert_eq!(16, id_str.len());
994        assert_eq!(id_str.to_lowercase(), id_str);
995    }
996
997    #[test]
998    fn test_id_v2_serialization() {
999        let id = generate_random_id(KeySetVersion::Version01);
1000        let id_str = id.to_string();
1001
1002        assert!(id_str.chars().all(|c| c.is_ascii_hexdigit()));
1003        assert_eq!(66, id_str.len());
1004        assert_eq!(id_str.to_lowercase(), id_str);
1005    }
1006
1007    #[test]
1008    fn test_id_deserialization() {
1009        let id_from_short_str = Id::from_str("00123");
1010        assert!(matches!(id_from_short_str, Err(Error::Length)));
1011
1012        let id_from_non_hex_str = Id::from_str(&SHORT_KEYSET_ID.replace('a', "x"));
1013        assert!(matches!(id_from_non_hex_str, Err(Error::HexError(_))));
1014
1015        let id_invalid_version = Id::from_str(&SHORT_KEYSET_ID.replace("00", "99"));
1016        assert!(matches!(id_invalid_version, Err(Error::UnknownVersion)));
1017
1018        let id_from_uppercase = Id::from_str(&SHORT_KEYSET_ID.to_uppercase());
1019        assert!(id_from_uppercase.is_ok());
1020    }
1021
1022    #[test]
1023    fn test_short_keyset_id_from_id() {
1024        let idv1 = Id::from_str("009a1f293253e41e").unwrap();
1025        let idv2 =
1026            Id::from_str("01adc013fa9d85171586660abab27579888611659d357bc86bc09cb26eee8bc035")
1027                .unwrap();
1028
1029        let short_id_1: ShortKeysetId = idv1.into();
1030        let short_id_2: ShortKeysetId = idv2.into();
1031
1032        assert!(short_id_1.to_string() == "009a1f293253e41e");
1033        assert!(short_id_2.to_string() == "01adc013fa9d8517");
1034    }
1035
1036    #[test]
1037    fn test_id_with_non_ascii_chars() {
1038        // Test that non-ASCII characters in ID strings don't cause panics
1039        // but instead return proper errors. This was found by fuzzing.
1040        // The character 'ǝ' is a 2-byte UTF-8 sequence that could cause
1041        // panics when slicing by byte index.
1042        let id_with_non_ascii = Id::from_str("0ǝfa73302d12ff{");
1043        assert!(matches!(id_with_non_ascii, Err(Error::HexError(_))));
1044
1045        // Also test ShortKeysetId
1046        let short_id_with_non_ascii = ShortKeysetId::from_str("0ǝfa73302d12ff");
1047        assert!(matches!(short_id_with_non_ascii, Err(Error::HexError(_))));
1048    }
1049}
cashu/nuts/nut02.rs

cashu/nuts/
nut02.rs
