Documentation ¶
Index ¶
- Constants
- func Ecrecover(hash, sig []byte) ([]byte, error)
- func GetRandomBytes(len int) ([]byte, error)
- func GetRandomNonce() ([]byte, error)
- func S256() elliptic.Curve
- func SigToPub(hash, sig []byte) (*ecdsa.PublicKey, error)
- func Sign(hash []byte, prv *ecdsa.PrivateKey) (sig []byte, err error)
- type LocalSigner
Constants ¶
View Source
const (
// NonceSize is the default NonceSize
NonceSize = 24
)
Variables ¶
This section is empty.
Functions ¶
func GetRandomBytes ¶
GetRandomBytes returns len random looking bytes
func GetRandomNonce ¶
GetRandomNonce returns a random byte array of length NonceSize
func Sign ¶
func Sign(hash []byte, prv *ecdsa.PrivateKey) (sig []byte, err error)
Sign calculates an ECDSA signature.
This function is susceptible to chosen plaintext attacks that can leak information about the private key that is used for signing. Callers must be aware that the given hash cannot be chosen by an adversery. Common solution is to hash any input before calculating the signature.
The produced signature is in the [R || S || V] format where V is 0 or 1.
Types ¶
type LocalSigner ¶
type LocalSigner interface { // NewSignatureHeader creates a SignatureHeader with the correct signing identity and a valid nonce NewSignatureHeader() (*cb.SignatureHeader, error) // Sign a message which should embed a signature header created by NewSignatureHeader Sign(message []byte) ([]byte, error) }
LocalSigner is a temporary stub interface which will be implemented by the local MSP
Directories ¶
Path | Synopsis |
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Package secp256k1 wraps the bitcoin secp256k1 C library.
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Package secp256k1 wraps the bitcoin secp256k1 C library. |
Package sha3 implements the SHA3 hash algorithm (formerly called Keccak) chosen by NIST in 2012.
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Package sha3 implements the SHA3 hash algorithm (formerly called Keccak) chosen by NIST in 2012. |
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