rfc6979

package
Version: v0.2.1 Latest Latest
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Published: Nov 20, 2018 License: MIT Imports: 9 Imported by: 0

Documentation

Overview

Package rfc6979 is an implementation of RFC 6979's deterministic DSA.

Such signatures are compatible with standard Digital Signature Algorithm
(DSA) and Elliptic Curve Digital Signature Algorithm (ECDSA) digital
signatures and can be processed with unmodified verifiers, which need not be
aware of the procedure described therein.  Deterministic signatures retain
the cryptographic security features associated with digital signatures but
can be more easily implemented in various environments, since they do not
need access to a source of high-quality randomness.

(https://tools.ietf.org/html/rfc6979) Provides functions similar to crypto/dsa and crypto/ecdsa.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func HmacSHA256

func HmacSHA256(m []byte, k []byte) []byte

func RandStringBytes

func RandStringBytes(n int) string

func SignECDSA

func SignECDSA(priv *ecdsa.PrivateKey, hash []byte, alg func() hash.Hash, nonce int) (r, s *big.Int, err error)

SignECDSA signs an arbitrary length hash (which should be the result of hashing a larger message) using the private key, priv. It returns the signature as a pair of integers.

Note that FIPS 186-3 section 4.6 specifies that the hash should be truncated to the byte-length of the subgroup. This function does not perform that truncation itself.

Types

This section is empty.

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