Documentation
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Overview ¶
Package crypto provides security tools
Index ¶
Constants ¶
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const ( // CKeySize is the cipher key size - AES-256 CKeySize = 32 // MKeySize is the HMAC key size - HMAC-SHA-256 MKeySize = 32 // KeySize is the encryption key size KeySize = CKeySize + MKeySize // AESNonceSize is an AES nonce size AESNonceSize = aes.BlockSize // GCMNonceSize is a GCM nonce size GCMNonceSize = 12 // SenderSize is the size allocated to add the sender ID SenderSize = 4 // MACSize MAC size MACSize = 32 )
Variables ¶
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var ( // ErrEncrypt occurs when the encryption process fails. The reason of failure // is concealed for security reason ErrEncrypt = errors.New("sec: encryption failed") // ErrDecrypt occurs when the decryption process fails. ErrDecrypt = errors.New("sec: decryption failed") )
Functions ¶
Types ¶
type Rotor ¶
type Rotor struct {
NonceSize int
// contains filtered or unexported fields
}
Rotor is a encryption/decryption tool that supports key rotation
Note: Data encrypted with sec.Encrypt cannot be decrypted with Rotor
func NewRotor ¶
NewRotor creates a new Rotor with the given keys. The defaultSender will be used as the default sender ID during the encryption process
func (*Rotor) Decrypt ¶
Decrypt takes an incoming message and uses the sender ID to retrieve the appropriate key. It then attempts to recover the message using that key.
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