blowfish

package

v0.0.25 Latest Latest Go to latest Published: Aug 22, 2026 License: MIT Imports: 1 Imported by: 0

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const BlockSize = 8

BlockSize is the Blowfish block size in bytes (8 bytes).

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const ErrKeySize = "blowfish: invalid key size"

ErrKeySize is the error returned when the key has an invalid size.

This section is empty.

func ExpandKey(key []byte, c *Cipher)

ExpandKey performs the key expansion on the given Cipher.

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

Cipher is an instance of the Blowfish cipher.

func NewCipher(key []byte) (*Cipher, error)

NewCipher creates and returns a Cipher. The key must be between 1 and 56 bytes long.

func NewSaltedCipher(key, salt []byte) (*Cipher, error)

NewSaltedCipher creates and returns a Cipher that folds a salt into its key schedule. For bcrypt compatibility, the key may exceed 56 bytes.

func (c *Cipher) Decrypt(dst, src []byte)

Decrypt decrypts the 8-byte block src and stores the result in dst.

func (c *Cipher) Encrypt(dst, src []byte)

Encrypt encrypts the 8-byte block src and stores the result in dst.