q9f/secp256k1.cr

📋 Changes

• the entire gem has been completely refactored and optimized. instead of listing all the changes, it's worth taking a look at the docs: https://q9f.github.io/secp256k1.cr/
• the only logic change is that signatures are now deterministic as per rfc-6979: https://datatracker.ietf.org/doc/html/rfc6979
• old signatures remain valid, though.
• new signatures also encode a recovery id in `v`.
• ethereum and bitcoin accounts have been demoted to _examples_ as they should be handled in external libraries. they live in their own namespace now and should be considered educational material.
• docs: publish for 0.5 by @q9f in https://github.com/q9f/secp256k1.cr/pull/60
• lib: add an ethereum example implementation by @q9f in https://github.com/q9f/secp256k1.cr/pull/59
• lib: add an bitcoin example implementation by @q9f in https://github.com/q9f/secp256k1.cr/pull/58
• + 8 more

📋 Changes

• ci: fix github workflows #45
• docs: regenerate crystal documentation #46
• shards: update supported crystal version to v1.1.1 #47

📋 Changes

• Shards: bump crystal to v0.36.1 (#44)

📋 Changes

• Shards: bump crystal version to 0.35.1 (#43)

📋 Changes

• Hash: Fix deprecated warnings (crystal 0.35) (#41)
• Shards: bump crystal version to 0.35.0 (#42)

📋 Changes

• ensure crystal 0.34 compatibility (#40)

📋 Changes

• update crystal version to 0.33.0 #39

📋 Changes

• `EC_Point` is now `ECPoint`
• `ECDSA_Signature` is now `ECDSASignature`
• all hashing functions ending with `_string` are renamed now overloadable with `String`
• changes to code style (#34)
• add stats to nightly workflows (#36)
• overload hashing functions with strings (#37)
• update contributors (#38)

📋 Changes

• `Secp256k1::Keypair`
• `Secp256k1::Bitcoin::Account`
• `Secp256k1::Ethereum::Account`
• `Secp256k1::Ethereum::Enode`
• add devp2p enode support #31
• add mini_is_valid? #29

📋 Changes

• mini-private keys now use BASE-56 instead of BASE-57. that does not affect existing mini-private keys.
• added `Secp256k1::Bitcoin.wif_from_private_uncompressed` wrapper for uncompressed wif
• renamed `Secp256k1::Bitcoin.wif_compressed_from_private` to `.wif_from_private_compressed`
• private keys are handled as `BigInt` instead of a `String` literals wherever possible, e.g., `Secp256k1::Bitcoin.address_from_private` or `Secp256k1::Ethereum.address_from_private`
• constants: renamed `EC_PARAM_PRIME` to `EC_PRIME_P`
• replaced `BASE_57` in favor of `BASE_56` by removing the `o` from the alphabet as recommended by the Bitcoin Wiki.
• binary hashing operations now directly operate on `Bytes` instead of `String` literals, e.g., `Secp256k1::Hash.sha3`, `.sha256`, `.keccak256`, `.ripemd160`
• added `Secp256k1::Hash.ripemd160_string` for RIPEMD-160 hashes on `String` literals to complement `.sha3_string`, `.sha256_string`, and `.keccak256_string`
• + 3 more

📋 Changes

• `Secp256k1`: necessary constants and data structures
• `Secp256k1::Core`: the entire core mathematics behind the elliptic curve cryptography
• `Secp256k1::Util`: all tools for the handling of private-public key-pairs
• `Secp256k1::Hash`: implementation of various hashing algorithms for convenience
• `Secp256k1::Signature`: allows for signing messages and verifying signatures
• `Secp256k1::Bitcoin`: for the generation of bitcoin addresses
• `Secp256k1::Ethereum`: for the generation of ethereum addresses
• add docs to readme (#26)
• + 3 more

📋 Changes

• allow to sign and verify messages #20

📋 Changes

• allow for wif to address #19

📋 Changes

• try: add an example program #14
• add support for mini private keys #16
• add support for wallet import format #18

📋 Changes

• add cryptographic hashing functions #9
• add bitcoin and ethereum address modules #9
• allow for export of unprefixed uncompressed keys for ethereum #9
• add tests for hashes on bytes #9
• implement eip-55 test cases #9
• bind mpz_powm_sec from libgmp #11

📋 Changes

• allow for converting between different public key formats #7
• add a known private key to tests #7
• raise if it tries to decode compressed keys as mod_exp overflows #7

📋 Changes

• use proper integer division #6
• ensure private keys are within the ec field size #6
• disallow ec multiplication with invalid private keys #6

📋 Changes

• the constants describing the elliptic curve #1
• the four `Secp256k1::` key functions for `ec_mul`, `ec_add`, `ec_double`, and `ec_mod_inv` #1
• utilities to generate private and public keys #1
• tests for the secp256k1 module #1
• a struct for `EC_Point` #1
• github actions checking format and spec #2
• a meaningful readme #3