rsa
packagestandard library
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Documentation¶
Index¶
- Variables
- func DecryptOAEP(hash, mgfHash hash.Hash, priv *PrivateKey, ciphertext []byte, label []byte) ([]byte, error)
- func DecryptWithCheck(priv *PrivateKey, ciphertext []byte) ([]byte, error)
- func DecryptWithoutCheck(priv *PrivateKey, ciphertext []byte) ([]byte, error)
- func Encrypt(pub *PublicKey, plaintext []byte) ([]byte, error)
- func EncryptOAEP(hash, mgfHash hash.Hash, random io.Reader, pub *PublicKey, msg []byte, ...) ([]byte, error)
- func PSSMaxSaltLength(pub *PublicKey, hash hash.Hash) (int, error)
- func SignPKCS1v15(priv *PrivateKey, hash string, hashed []byte) ([]byte, error)
- func SignPSS(rand io.Reader, priv *PrivateKey, hash hash.Hash, hashed []byte, ...) ([]byte, error)
- func VerifyPKCS1v15(pub *PublicKey, hash string, hashed []byte, sig []byte) error
- func VerifyPSS(pub *PublicKey, hash hash.Hash, digest []byte, sig []byte) error
- func VerifyPSSWithSaltLength(pub *PublicKey, hash hash.Hash, digest []byte, sig []byte, saltLength int) error
- type PrivateKey
- func GenerateKey(rand io.Reader, bits int) (*PrivateKey, error)
- func NewPrivateKey(N []byte, e int, d, P, Q []byte) (*PrivateKey, error)
- func NewPrivateKeyWithPrecomputation(N []byte, e int, d, P, Q, dP, dQ, qInv []byte) (*PrivateKey, error)
- func NewPrivateKeyWithoutCRT(N []byte, e int, d []byte) (*PrivateKey, error)
- type PublicKey
Constants¶
This section is empty.
Variables¶
var ErrDecryption =errors.New("crypto/rsa: decryption error")var ErrMessageTooLong =errors.New("crypto/rsa: message too long for RSA key size")var ErrVerification =errors.New("crypto/rsa: verification error")Functions¶
funcDecryptOAEP¶
func DecryptOAEP(hash, mgfHashhash.Hash, priv *PrivateKey, ciphertext []byte, label []byte) ([]byte,error)
DecryptOAEP decrypts ciphertext using RSAES-OAEP.
funcDecryptWithCheck¶
func DecryptWithCheck(priv *PrivateKey, ciphertext []byte) ([]byte,error)
DecryptWithCheck performs the RSA private key operation and checks theresult to defend against errors in the CRT computation.
funcDecryptWithoutCheck¶
func DecryptWithoutCheck(priv *PrivateKey, ciphertext []byte) ([]byte,error)
DecryptWithoutCheck performs the RSA private key operation.
funcEncryptOAEP¶
func EncryptOAEP(hash, mgfHashhash.Hash, randomio.Reader, pub *PublicKey, msg []byte, label []byte) ([]byte,error)
EncryptOAEP encrypts the given message with RSAES-OAEP.
funcPSSMaxSaltLength¶
PSSMaxSaltLength returns the maximum salt length for a given public key andhash function.
funcSignPKCS1v15¶
func SignPKCS1v15(priv *PrivateKey, hashstring, hashed []byte) ([]byte,error)
SignPKCS1v15 calculates an RSASSA-PKCS1-v1.5 signature.
hash is the name of the hash function as returned bycrypto.Hash.Stringor the empty string to indicate that the message is signed directly.
funcSignPSS¶
func SignPSS(randio.Reader, priv *PrivateKey, hashhash.Hash, hashed []byte, saltLengthint) ([]byte,error)
SignPSS calculates the signature of hashed using RSASSA-PSS.
funcVerifyPKCS1v15¶
VerifyPKCS1v15 verifies an RSASSA-PKCS1-v1.5 signature.
hash is the name of the hash function as returned bycrypto.Hash.Stringor the empty string to indicate that the message is signed directly.
Types¶
typePrivateKey¶
type PrivateKey struct {// contains filtered or unexported fields}funcGenerateKey¶
func GenerateKey(randio.Reader, bitsint) (*PrivateKey,error)
GenerateKey generates a new RSA key pair of the given bit size.bits must be at least 32.
funcNewPrivateKey¶
func NewPrivateKey(N []byte, eint, d, P, Q []byte) (*PrivateKey,error)
NewPrivateKey creates a new RSA private key from the given parameters.
All values are in big-endian byte slice format, and may have leading zerosor be shorter if leading zeroes were trimmed.
funcNewPrivateKeyWithPrecomputation¶
func NewPrivateKeyWithPrecomputation(N []byte, eint, d, P, Q, dP, dQ, qInv []byte) (*PrivateKey,error)
NewPrivateKeyWithPrecomputation creates a new RSA private key from the givenparameters, which include precomputed CRT values.
funcNewPrivateKeyWithoutCRT¶
func NewPrivateKeyWithoutCRT(N []byte, eint, d []byte) (*PrivateKey,error)
NewPrivateKeyWithoutCRT creates a new RSA private key from the given parameters.
This is meant for deprecated multi-prime keys, and is not FIPS 140 compliant.
func (*PrivateKey)Export¶
func (priv *PrivateKey) Export() (N []byte, eint, d, P, Q, dP, dQ, qInv []byte)
Export returns the key parameters in big-endian byte slice format.
P, Q, dP, dQ, and qInv may be nil if the key was created withNewPrivateKeyWithoutCRT.
func (*PrivateKey)PublicKey¶
func (priv *PrivateKey) PublicKey() *PublicKey
Source Files