dsa.L1024N160
const L1024N160 = iota
dsa.L2048N224
const L2048N224 = iota
dsa.L2048N256
const L2048N256 = iota
dsa.L3072N256
const L3072N256 = iota
dsa.ErrInvalidPublicKey
// ErrInvalidPublicKey results when a public key is not usable by this code.
// FIPS is quite strict about the format of DSA keys, but other code may be
// less so. Thus, when using keys which may have been generated by other code,
// this error must be handled.
var ErrInvalidPublicKey = errors.New("crypto/dsa: invalid public key")
dsa.L
var L int
dsa.N
var N int
dsa.GenerateKey
// GenerateKey generates a public&private key pair. The Parameters of the
// PrivateKey must already be valid (see GenerateParameters).
func GenerateKey(priv *PrivateKey, rand io.Reader) error
dsa.GenerateParameters
// GenerateParameters puts a random, valid set of DSA parameters into params.
// This function can take many seconds, even on fast machines.
func GenerateParameters(params *Parameters, rand io.Reader, sizes ParameterSizes) error
dsa.Sign
// Sign 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. The security of the private key depends on the entropy of
// rand.
//
// 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.
//
// Be aware that calling Sign with an attacker-controlled PrivateKey may
// require an arbitrary amount of CPU.
func Sign(rand io.Reader, priv *PrivateKey, hash []byte) (r *big.Int, s *big.Int, err error)
dsa.Verify
// Verify verifies the signature in r, s of hash using the public key, pub. It
// reports whether the signature is valid.
//
// 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.
func Verify(pub *PublicKey, hash []byte, r *big.Int, s *big.Int) bool