fluree.crypto.secp256k1 — com.fluree/crypto 0.4.0

deterministic-generate-k clj/s

(deterministic-generate-k hash-ba priv-key curve)

Deterministically generate a random number in accordance with RFC 6979. Provided hash should have 256 bits to align with secp256k1 curve.

ecrecover clj/s

(ecrecover hash recovery-byte r s)

Given the components of a signature and a recovery value, recover and return the public key that generated the signature according to the algorithm in SEC1v2 section 4.1.6

recovery-byte should be an integer byte.

format-key-pair clj/s

(format-key-pair pair)

Takes internal representation of a key-pair and returns X9.62 compressed encoded public key and private key as a map, with each value hex encoded.

format-public-key clj/s

(format-public-key public)

Takes internal representation of a public key and returns X9.62 compressed encoded public key, hex encoded.

generate-key-pair clj/s

(generate-key-pair)

(generate-key-pair private)

Returns key pair in hex format using X9.62 compressed encoding for public key.

generate-key-pair* clj/s

(generate-key-pair*)

(generate-key-pair* private)

Generates an internal representation of key pair from a secure random seed or provided private key. Returns map/object with two keys:

• private - a big number/integer
• public - a curve point

If a private key is provided, must be in either hex string or BigInteger (clj) bignumber (cljs).

get-sin-from-public-key clj/s

(get-sin-from-public-key pub-key
                         &
                         {:keys [output-format] :or {output-format :base58}})

Generate a SIN from a public key

modulus clj/s

new-private-key clj/s

(new-private-key)

Generates a new random private key.

public-key-from-private clj/s

(public-key-from-private private)

recover-public-key clj/s

(recover-public-key input signature)

Recover a public key from original message and signature (hex) of the message's sha2-256 hash.

recover-public-key-from-hash clj/s

(recover-public-key-from-hash hash signature)

Recover a public key from a hash byte-array and signature (hex).

sign clj/s

(sign message private-key)

Sign some message with provided private key. Message must be a byte-array or string. Private key must be hex-encoded or a BigInteger(clj)/bignumber(cljs).

sign-hash clj/s

(sign-hash hash-ba private-bn recovery-byte?)

valid-private? clj/s

(valid-private? private)

Returns true if private key, as big number/integer, is valid. Private key must be >= 1 and <= curve modulus.

verify clj/s

(verify pub-key message signature)

Verifies a message given a signature (in hex). Assumes signature is DER-encoded with a recovery byte.

verify-signature-from-hash clj/s

(verify-signature-from-hash key hash signature)