Crate bitcoin_compressor

Structs

AmountCompression
ScriptCompression
| Compact serializer for scripts. | | It detects common cases and encodes | them much more efficiently. 3 special | cases are defined: | | - Pay to pubkey hash (encoded as 21 bytes) | | - Pay to script hash (encoded as 21 bytes) | | - Pay to pubkey starting with 0x02, 0x03 | or 0x04 (encoded as 33 bytes) | | Other scripts up to 121 bytes require | 1 byte + script length. Above that, scripts | up to 16505 bytes require 2 bytes + script | length. |
TxOutCompression
| wrapper for CTxOut that provides a more | compact serialization |

SCRIPT_COMPRESSION_N_SPECIAL_SCRIPTS
| make this static for now (there are only | 6 special scripts defined) this can | potentially be extended together with | a new nVersion for transactions, in | which case this value becomes dependent | on nVersion and nHeight of the enclosing | transaction. |

compress_amount
| Compress amount. | | nAmount is of type uint64_t and thus | cannot be negative. If you’re passing | in a CAmount (int64_t), make sure to | properly handle the case where the amount | is negative before calling CompressAmount(…). | | @pre Function defined only for 0 <= | nAmount <= MAX_MONEY. |
compress_script
decompress_amount
decompress_script
get_special_script_size
is_to_keyid
| These check for scripts for which a special | case with a shorter encoding is defined. | | They are implemented separately from | the | | CScript test, as these test for exact | byte sequence correspondences, and | are more strict. For example, IsToPubKey | also verifies whether the public key | is valid (as invalid ones cannot be represented | in compressed form). |
is_to_pub_key
is_to_scriptid
u64_plus_i32

CompressedScript
| This saves us from making many heap allocations | when serializing and deserializing | compressed scripts. | | This prevector size is determined by | the largest .resize() in the | | CompressScript function. The largest | compressed script format is a compressed | public key, which is 33 bytes. |