package internal

import "github.com/google/tink/go/signature/internal"

Package internal implements digital signatures.

Index ¶

• func HashSafeForSignature(hashAlg string) error
• func RSAValidModulusSizeInBits(m int) error
• func RSAValidPublicExponent(e int) error
• type RSA_SSA_PKCS1_Signer
• func New_RSA_SSA_PKCS1_Signer(hashAlg string, privKey *rsa.PrivateKey) (*RSA_SSA_PKCS1_Signer, error)
• func (s *RSA_SSA_PKCS1_Signer) Sign(data []byte) ([]byte, error)
• type RSA_SSA_PKCS1_Verifier
• func New_RSA_SSA_PKCS1_Verifier(hashAlg string, pubKey *rsa.PublicKey) (*RSA_SSA_PKCS1_Verifier, error)
• func (v *RSA_SSA_PKCS1_Verifier) Verify(signature, data []byte) error

Functions ¶

func HashSafeForSignature ¶

func HashSafeForSignature(hashAlg string) error

HashSafeForSignature checks whether a hash function is safe to use with digital signatures that require collision resistance.

func RSAValidModulusSizeInBits ¶

func RSAValidModulusSizeInBits(m int) error

RSAValidModulusSizeInBits the size in bits for an RSA key.

func RSAValidPublicExponent ¶

func RSAValidPublicExponent(e int) error

RSAValidPublicExponent validates a public RSA exponent.

Types ¶

type RSA_SSA_PKCS1_Signer ¶

type RSA_SSA_PKCS1_Signer struct {
	// contains filtered or unexported fields
}

RSA_SSA_PKCS1_Signer is an implementation of Signer for RSA-SSA-PKCS1.

func New_RSA_SSA_PKCS1_Signer ¶

func New_RSA_SSA_PKCS1_Signer(hashAlg string, privKey *rsa.PrivateKey) (*RSA_SSA_PKCS1_Signer, error)

New_RSA_SSA_PKCS1_Signer creates a new intance of RSA_SSA_PKCS1_Signer.

func (*RSA_SSA_PKCS1_Signer) Sign ¶

func (s *RSA_SSA_PKCS1_Signer) Sign(data []byte) ([]byte, error)

Sign computes a signature for the given data.

type RSA_SSA_PKCS1_Verifier ¶

type RSA_SSA_PKCS1_Verifier struct {
	// contains filtered or unexported fields
}

RSA_SSA_PKCS1_Verifier is an implementation of Verifier for RSA-SSA-PKCS1.

func New_RSA_SSA_PKCS1_Verifier ¶

func New_RSA_SSA_PKCS1_Verifier(hashAlg string, pubKey *rsa.PublicKey) (*RSA_SSA_PKCS1_Verifier, error)

New_RSA_SSA_PKCS1_Verifier creates a new intance of RSASSAPKCS1Verifier.

func (*RSA_SSA_PKCS1_Verifier) Verify ¶

func (v *RSA_SSA_PKCS1_Verifier) Verify(signature, data []byte) error

Verify verifies whether the given signaure is valid for the given data. It returns an error if the signature is not valid; nil otherwise.

Source Files ¶

internal.go rsa.go rsassapkcs1_signer.go rsassapkcs1_verifier.go