com.google.crypto.tink.signature

Class RsaSsaPssSignKeyManager

java.lang.Object

com.google.crypto.tink.signature.RsaSsaPssSignKeyManager

public final class RsaSsaPssSignKeyManager
extends Object

This key manager generates new RsaSsaPssPrivateKey keys and produces new instances of RsaSsaPssSignJce.

Method Summary

Modifier and Type	Method and Description
static KeyTemplate	rawRsa3072PssSha256F4Template()
static KeyTemplate	rawRsa4096PssSha512F4Template()
static void	registerPair(boolean newKeyAllowed) Registers the RsaSsaPssSignKeyManager and the RsaSsaPssVerifyKeyManager with the registry, so that the the RsaSsaPss-Keys can be used with Tink.
static KeyTemplate	rsa3072PssSha256F4Template()
static KeyTemplate	rsa4096PssSha512F4Template()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

registerPair

public static void registerPair(boolean newKeyAllowed)
                         throws GeneralSecurityException

Registers the RsaSsaPssSignKeyManager and the RsaSsaPssVerifyKeyManager with the registry, so that the the RsaSsaPss-Keys can be used with Tink.

Throws:

GeneralSecurityException

rsa3072PssSha256F4Template

public static final KeyTemplate rsa3072PssSha256F4Template()

Returns:

A KeyTemplate that generates new instances of RSA-SSA-PSS key pairs with the following parameters:

• Signature hash: SHA256.
• MGF1 hash: SHA256.
• Salt length: 32 (i.e., SHA256's output length).
• Modulus size: 3072 bit.
• Public exponent: 65537 (aka F4).
• Prefix type: KeyTemplate.OutputPrefixType#TINK.

rawRsa3072PssSha256F4Template

public static final KeyTemplate rawRsa3072PssSha256F4Template()

Returns:

A KeyTemplate that generates new instances of RSA-SSA-PSS key pairs with the following parameters:

• Signature hash: SHA256.
• MGF1 hash: SHA256.
• Salt length: 32 (i.e., SHA256's output length).
• Modulus size: 3072 bit.
• Public exponent: 65537 (aka F4).
• Prefix type: KeyTemplate.OutputPrefixType#RAW (no prefix).

Keys generated from this template create signatures compatible with OpenSSL and other libraries.

rsa4096PssSha512F4Template

public static final KeyTemplate rsa4096PssSha512F4Template()

Returns:

A KeyTemplate that generates new instances of RSA-SSA-PSS key pairs with the following parameters:

• Signature hash: SHA512.
• MGF1 hash: SHA512.
• Salt length: 64 (i.e., SHA512's output length).
• Modulus size: 4096 bit.
• Public exponent: 65537 (aka F4).
• Prefix type: KeyTemplate.OutputPrefixType#TINK.

rawRsa4096PssSha512F4Template

public static final KeyTemplate rawRsa4096PssSha512F4Template()

Returns:

A KeyTemplate that generates new instances of RSA-SSA-PSS key pairs with the following parameters:

• Signature hash: SHA512.
• MGF1 hash: SHA512.
• Salt length: 64 (i.e., SHA512's output length).
• Modulus size: 4096 bit.
• Public exponent: 65537 (aka F4).
• Prefix type: KeyTemplate.OutputPrefixType#RAW (no prefix).

Keys generated from this template create signatures compatible with OpenSSL and other libraries.