crypto

Documentation

Overview

Package crypto provides support for converting secp256k1 keys between Flow and SEC compressed formats.

Index

• func ConvertDERSignature(sig string) (string, error)
• func ConvertFlowPublicKey(key []byte) ([]byte, error)
• func ConvertFlowSignature(sig string) (string, error)
• func ConvertRosettaPublicKey(key []byte) ([]byte, error)

Functions

func ConvertDERSignature

func ConvertDERSignature(sig string) (string, error)

ConvertDERSignature re-encodes a DER-encoded ECDSA signature into the format expected by Flow.

func ConvertFlowPublicKey

func ConvertFlowPublicKey(key []byte) ([]byte, error)

ConvertFlowPublicKey re-encodes a secp256k1 public key from the format used by Flow to the SEC compressed format.

func ConvertFlowSignature

func ConvertFlowSignature(sig string) (string, error)

ConvertFlowSignature re-encodes an ECDSA signature from Flow's format into DER encoding.

The format of a DER encoded signature for secp256k1 is as follows:

0x30 <total length> 0x02 <length of R> <R> 0x02 <length of S> <S>

func ConvertRosettaPublicKey

func ConvertRosettaPublicKey(key []byte) ([]byte, error)

ConvertRosettaPublicKey re-encodes a SEC compressed secp256k1 public key to the format expected by Flow.