//! Certificate tests
use der::{
asn1::{BitStringRef, ContextSpecific, ObjectIdentifier, UIntRef},
Decode, DecodeValue, Encode, FixedTag, Header, Reader, Tag, Tagged,
};
use hex_literal::hex;
use spki::AlgorithmIdentifier;
use x509_cert::Certificate;
use x509_cert::*;
// TODO - parse and compare extension values
const EXTENSIONS: &[(&str, bool)] = &[
("2.5.29.15", true),
("2.5.29.19", true),
("2.5.29.33", false),
("2.5.29.32", false),
("2.5.29.14", false),
("2.5.29.31", false),
("1.3.6.1.5.5.7.1.11", false),
("1.3.6.1.5.5.7.1.1", false),
("2.5.29.54", false),
("2.5.29.35", false),
];
///Structure supporting deferred decoding of fields in the Certificate SEQUENCE
pub struct DeferDecodeCertificate<'a> {
/// tbsCertificate TBSCertificate,
pub tbs_certificate: &'a [u8],
/// signatureAlgorithm AlgorithmIdentifier,
pub signature_algorithm: &'a [u8],
/// signature BIT STRING
pub signature: &'a [u8],
}
impl<'a> DecodeValue<'a> for DeferDecodeCertificate<'a> {
fn decode_value<R: Reader<'a>>(
reader: &mut R,
header: Header,
) -> der::Result<DeferDecodeCertificate<'a>> {
reader.read_nested(header.length, |reader| {
Ok(Self {
tbs_certificate: reader.tlv_bytes()?,
signature_algorithm: reader.tlv_bytes()?,
signature: reader.tlv_bytes()?,
})
})
}
}
impl FixedTag for DeferDecodeCertificate<'_> {
const TAG: Tag = Tag::Sequence;
}
///Structure supporting deferred decoding of fields in the TBSCertificate SEQUENCE
pub struct DeferDecodeTbsCertificate<'a> {
/// Decoded field
pub version: u8,
/// Defer decoded field
pub serial_number: &'a [u8],
/// Defer decoded field
pub signature: &'a [u8],
/// Defer decoded field
pub issuer: &'a [u8],
/// Defer decoded field
pub validity: &'a [u8],
/// Defer decoded field
pub subject: &'a [u8],
/// Defer decoded field
pub subject_public_key_info: &'a [u8],
/// Decoded field (never present)
pub issuer_unique_id: Option<BitStringRef<'a>>,
/// Decoded field (never present)
pub subject_unique_id: Option<BitStringRef<'a>>,
/// Defer decoded field
pub extensions: &'a [u8],
}
impl<'a> DecodeValue<'a> for DeferDecodeTbsCertificate<'a> {
fn decode_value<R: Reader<'a>>(
reader: &mut R,
header: Header,
) -> der::Result<DeferDecodeTbsCertificate<'a>> {
reader.read_nested(header.length, |reader| {
let version = ContextSpecific::decode_explicit(reader, ::der::TagNumber::N0)?
.map(|cs| cs.value)
.unwrap_or_else(Default::default);
Ok(Self {
version,
serial_number: reader.tlv_bytes()?,
signature: reader.tlv_bytes()?,
issuer: reader.tlv_bytes()?,
validity: reader.tlv_bytes()?,
subject: reader.tlv_bytes()?,
subject_public_key_info: reader.tlv_bytes()?,
issuer_unique_id: reader.decode()?,
subject_unique_id: reader.decode()?,
extensions: reader.tlv_bytes()?,
})
})
}
}
impl FixedTag for DeferDecodeTbsCertificate<'_> {
const TAG: Tag = Tag::Sequence;
}
#[test]
fn reencode_cert() {
let der_encoded_cert =
include_bytes!("examples/026EDA6FA1EDFA8C253936C75B5EEBD954BFF452.fake.der");
let defer_cert = DeferDecodeCertificate::from_der(der_encoded_cert).unwrap();
let parsed_tbs = TbsCertificate::from_der(defer_cert.tbs_certificate).unwrap();
let reencoded_tbs = parsed_tbs.to_vec().unwrap();
assert_eq!(defer_cert.tbs_certificate, reencoded_tbs);
let parsed_sigalg = AlgorithmIdentifier::from_der(defer_cert.signature_algorithm).unwrap();
let reencoded_sigalg = parsed_sigalg.to_vec().unwrap();
assert_eq!(defer_cert.signature_algorithm, reencoded_sigalg);
let parsed_sig = BitStringRef::from_der(defer_cert.signature).unwrap();
let reencoded_sig = parsed_sig.to_vec().unwrap();
assert_eq!(defer_cert.signature, reencoded_sig);
let parsed_coverage_tbs =
DeferDecodeTbsCertificate::from_der(defer_cert.tbs_certificate).unwrap();
// TODO - defer decode then re-encode version field
let encoded_serial = parsed_tbs.serial_number.to_vec().unwrap();
assert_eq!(parsed_coverage_tbs.serial_number, encoded_serial);
let encoded_signature = parsed_tbs.signature.to_vec().unwrap();
assert_eq!(parsed_coverage_tbs.signature, encoded_signature);
let encoded_issuer = parsed_tbs.issuer.to_vec().unwrap();
assert_eq!(parsed_coverage_tbs.issuer, encoded_issuer);
let encoded_validity = parsed_tbs.validity.to_vec().unwrap();
assert_eq!(parsed_coverage_tbs.validity, encoded_validity);
let encoded_subject = parsed_tbs.subject.to_vec().unwrap();
assert_eq!(parsed_coverage_tbs.subject, encoded_subject);
let encoded_subject_public_key_info = parsed_tbs.subject_public_key_info.to_vec().unwrap();
assert_eq!(
parsed_coverage_tbs.subject_public_key_info,
encoded_subject_public_key_info
);
// TODO - either encode as context specific or decode to sequence. for know lop off context
// specific tag and length
let encoded_extensions = parsed_tbs.extensions.to_vec().unwrap();
assert_eq!(&parsed_coverage_tbs.extensions[4..], encoded_extensions);
}
#[test]
fn decode_oversized_oids() {
let o1parse = ObjectIdentifier::from_der(&hex!(
"06252B060104018237150885C8B86B87AFF00383A99F3C96C34081ADE6494D82B0E91D85B2873D"
))
.unwrap();
let o1str = o1parse.to_string();
assert_eq!(
o1str,
"1.3.6.1.4.1.311.21.8.11672683.15464451.6967228.369088.2847561.77.4994205.11305917"
);
let o1 = ObjectIdentifier::new_unwrap(
"1.3.6.1.4.1.311.21.8.11672683.15464451.6967228.369088.2847561.77.4994205.11305917",
);
assert_eq!(
o1.to_string(),
"1.3.6.1.4.1.311.21.8.11672683.15464451.6967228.369088.2847561.77.4994205.11305917"
);
let enc_oid = o1.to_vec().unwrap();
assert_eq!(
&hex!("06252B060104018237150885C8B86B87AFF00383A99F3C96C34081ADE6494D82B0E91D85B2873D"),
enc_oid.as_slice()
);
}
#[test]
fn decode_cert() {
// cloned cert with variety of interesting bits, including subject DN encoded backwards, large
// policy mapping set, large policy set (including one with qualifiers), fairly typical set of
// extensions otherwise
let der_encoded_cert =
include_bytes!("examples/026EDA6FA1EDFA8C253936C75B5EEBD954BFF452.fake.der");
let result = Certificate::from_der(der_encoded_cert);
let cert: Certificate = result.unwrap();
println!("{:?}", cert);
let exts = cert.tbs_certificate.extensions.unwrap();
for (ext, (oid, crit)) in exts.iter().zip(EXTENSIONS) {
assert_eq!(ext.extn_id.to_string(), *oid);
assert_eq!(ext.critical, *crit);
}
let result = Certificate::from_der(der_encoded_cert);
let cert: Certificate = result.unwrap();
assert_eq!(cert.tbs_certificate.version, Version::V3);
let target_serial: [u8; 16] = [
0x7F, 0x00, 0x00, 0x01, 0x00, 0x00, 0x01, 0x49, 0xCF, 0x70, 0x66, 0x4D, 0x00, 0x00, 0x00,
0x02,
];
assert_eq!(
cert.tbs_certificate.serial_number,
UIntRef::new(&target_serial).unwrap()
);
assert_eq!(
cert.tbs_certificate.signature.oid.to_string(),
"1.2.840.113549.1.1.11"
);
assert_eq!(
cert.tbs_certificate.signature.parameters.unwrap().tag(),
Tag::Null
);
assert_eq!(
cert.tbs_certificate.signature.parameters.unwrap().is_null(),
true
);
let mut counter = 0;
let i = cert.tbs_certificate.issuer.0.iter();
for rdn in i {
let i1 = rdn.0.iter();
for atav in i1 {
if 0 == counter {
assert_eq!(atav.oid.to_string(), "2.5.4.6");
assert_eq!(atav.value.printable_string().unwrap().to_string(), "US");
} else if 1 == counter {
assert_eq!(atav.oid.to_string(), "2.5.4.10");
assert_eq!(atav.value.printable_string().unwrap().to_string(), "Mock");
} else if 2 == counter {
assert_eq!(atav.oid.to_string(), "2.5.4.10");
assert_eq!(
atav.value.utf8_string().unwrap().to_string(),
"IdenTrust Services LLC"
);
} else if 3 == counter {
assert_eq!(atav.oid.to_string(), "2.5.4.3");
assert_eq!(
atav.value.utf8_string().unwrap().to_string(),
"PTE IdenTrust Global Common Root CA 1"
);
}
counter += 1;
}
}
assert_eq!(
cert.tbs_certificate
.validity
.not_before
.to_unix_duration()
.as_secs(),
1416524490
);
assert_eq!(
cert.tbs_certificate
.validity
.not_after
.to_unix_duration()
.as_secs(),
1516628593
);
counter = 0;
let i = cert.tbs_certificate.subject.0.iter();
for rdn in i {
let i1 = rdn.0.iter();
for atav in i1 {
// Yes, this cert features RDNs encoded in reverse order
if 0 == counter {
assert_eq!(atav.oid.to_string(), "2.5.4.3");
assert_eq!(
atav.value.printable_string().unwrap().to_string(),
"Test Federal Bridge CA"
);
} else if 1 == counter {
assert_eq!(atav.oid.to_string(), "2.5.4.11");
assert_eq!(
atav.value.printable_string().unwrap().to_string(),
"TestFPKI"
);
} else if 2 == counter {
assert_eq!(atav.oid.to_string(), "2.5.4.10");
assert_eq!(
atav.value.printable_string().unwrap().to_string(),
"U.S. Government"
);
} else if 3 == counter {
assert_eq!(atav.oid.to_string(), "2.5.4.6");
assert_eq!(atav.value.printable_string().unwrap().to_string(), "US");
}
counter += 1;
}
}
assert_eq!(
cert.tbs_certificate
.subject_public_key_info
.algorithm
.oid
.to_string(),
"1.2.840.113549.1.1.1"
);
assert_eq!(
cert.tbs_certificate
.subject_public_key_info
.algorithm
.parameters
.unwrap()
.tag(),
Tag::Null
);
assert_eq!(
cert.tbs_certificate
.subject_public_key_info
.algorithm
.parameters
.unwrap()
.is_null(),
true
);
// TODO - parse and compare public key
let exts = cert.tbs_certificate.extensions.unwrap();
for (ext, (oid, crit)) in exts.iter().zip(EXTENSIONS) {
assert_eq!(ext.extn_id.to_string(), *oid);
assert_eq!(ext.critical, *crit);
}
assert_eq!(
cert.signature_algorithm.oid.to_string(),
"1.2.840.113549.1.1.11"
);
assert_eq!(
cert.signature_algorithm.parameters.unwrap().tag(),
Tag::Null
);
assert_eq!(cert.signature_algorithm.parameters.unwrap().is_null(), true);
assert_eq!(
&hex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
cert.signature.raw_bytes()
);
}