com.goterl.lazysodium.interfaces

Interface Sign.Lazy

All Known Implementing Classes:

LazySodium, LazySodiumJava

Enclosing interface:

Sign

public static interface Sign.Lazy

Method Summary

Modifier and Type	Method and Description
KeyPair	convertKeyPairEd25519ToCurve25519(KeyPair ed25519KeyPair) Converts a ed25519 keypair to a curve25519 keypair.
java.lang.String	cryptoSign(java.lang.String message, Key secretKey) Sign a message.
java.lang.String	cryptoSign(java.lang.String message, java.lang.String secretKey) Sign a message.
java.lang.String	cryptoSignDetached(java.lang.String message, Key secretKey) Returns a signature for a message.
KeyPair	cryptoSignKeypair() Generate a signing keypair (ed25519).
java.lang.String	cryptoSignOpen(java.lang.String signedMessage, Key publicKey) Checks that a message is validly signed by a public key.
KeyPair	cryptoSignSecretKeyPair(Key secretKey) Generate a signing keypair (ed25519), given a secret ed25519 key.
KeyPair	cryptoSignSeedKeypair(byte[] seed) Generate a signing keypair deterministically.
boolean	cryptoSignVerifyDetached(java.lang.String signature, java.lang.String message, Key publicKey) Verifies that signature is valid for the message.

Method Detail

cryptoSignKeypair

KeyPair cryptoSignKeypair()
                   throws SodiumException

Generate a signing keypair (ed25519).

Returns:

Public and private keypair.

Throws:

SodiumException

cryptoSignSeedKeypair

KeyPair cryptoSignSeedKeypair(byte[] seed)
                       throws SodiumException

Generate a signing keypair deterministically.

Parameters:

seed - The seed to generate keys.

Returns:

Public and private keypair.

Throws:

SodiumException

cryptoSignSecretKeyPair

KeyPair cryptoSignSecretKeyPair(Key secretKey)
                         throws SodiumException

Generate a signing keypair (ed25519), given a secret ed25519 key.

Parameters:

secretKey - The ed25519 secret key.

Returns:

The private and public ed25519 keys.

Throws:

SodiumException

cryptoSign

java.lang.String cryptoSign(java.lang.String message,
                            java.lang.String secretKey)
                     throws SodiumException

Sign a message.

Parameters:

message - The message to sign.

secretKey - The secret key.

Returns:

A Helpers.Lazy.sodiumBin2Hex(byte[])-ified signed message.

Throws:

SodiumException

cryptoSign

java.lang.String cryptoSign(java.lang.String message,
                            Key secretKey)
                     throws SodiumException

Sign a message.

Parameters:

message - The message to sign.

secretKey - The secret key.

Returns:

A Helpers.Lazy.sodiumBin2Hex(byte[])-ified signed message.

Throws:

SodiumException

cryptoSignOpen

java.lang.String cryptoSignOpen(java.lang.String signedMessage,
                                Key publicKey)

Checks that a message is validly signed by a public key.

Parameters:

signedMessage - The signed message.

publicKey - The public key that signed the message.

Returns:

Returns the message without a signature. If null, then the message is not validly signed by the publicKey.

cryptoSignDetached

java.lang.String cryptoSignDetached(java.lang.String message,
                                    Key secretKey)
                             throws SodiumException

Returns a signature for a message. This does not prepend the signature to the message. See cryptoSign(String, String) for that.

Parameters:

message - The message to sign.

secretKey - The secret key.

Returns:

The signature for a message.

Throws:

SodiumException - If could not sign.

cryptoSignVerifyDetached

boolean cryptoSignVerifyDetached(java.lang.String signature,
                                 java.lang.String message,
                                 Key publicKey)

Verifies that signature is valid for the message.

Parameters:

signature - The signature.

message - The message.

publicKey - The public key that signed the message.

Returns:

Returns true if the signature is valid for the message.

See Also:

cryptoSignDetached(String, Key)

convertKeyPairEd25519ToCurve25519

KeyPair convertKeyPairEd25519ToCurve25519(KeyPair ed25519KeyPair)
                                   throws SodiumException

Converts a ed25519 keypair to a curve25519 keypair.

Parameters:

ed25519KeyPair - The key pair.

Returns:

curve25519KeyPair

Throws:

SodiumException - If conversion was unsuccessful.