Package com.google.crypto.tink.mac

Class HmacKeyManager

java.lang.Object

com.google.crypto.tink.mac.HmacKeyManager

public final class HmacKeyManager
extends java.lang.Object

This key manager generates new HmacKey keys and produces new instances of PrfHmacJce.

Method Summary

Modifier and Type	Method	Description
static KeyTemplate	hmacSha256HalfDigestTemplate()
static KeyTemplate	hmacSha256Template()
static KeyTemplate	hmacSha512HalfDigestTemplate()
static KeyTemplate	hmacSha512Template()
static void	register(boolean newKeyAllowed)

Methods inherited from class java.lang.Object

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

Method Detail

register

public static void register(boolean newKeyAllowed)
                     throws java.security.GeneralSecurityException

Throws:

java.security.GeneralSecurityException

hmacSha256HalfDigestTemplate

public static final KeyTemplate hmacSha256HalfDigestTemplate()

Returns:

A KeyTemplate that generates new instances of HMAC keys with the following parameters:

• Key size: 32 bytes
• Tag size: 16 bytes
• Hash function: SHA256
• Prefix type: KeyTemplate.OutputPrefixType.TINK

hmacSha256Template

public static final KeyTemplate hmacSha256Template()

Returns:

A KeyTemplate that generates new instances of HMAC keys with the following parameters:

• Key size: 32 bytes
• Tag size: 32 bytes
• Hash function: SHA256
• Prefix type: KeyTemplate.OutputPrefixType.TINK

hmacSha512HalfDigestTemplate

public static final KeyTemplate hmacSha512HalfDigestTemplate()

Returns:

A KeyTemplate that generates new instances of HMAC keys with the following parameters:

• Key size: 64 bytes
• Tag size: 32 bytes
• Hash function: SHA512
• Prefix type: KeyTemplate.OutputPrefixType.TINK

hmacSha512Template

public static final KeyTemplate hmacSha512Template()

Returns:

A KeyTemplate that generates new instances of HMAC keys with the following parameters:

• Key size: 64 bytes
• Tag size: 64 bytes
• Hash function: SHA512
• Prefix type: KeyTemplate.OutputPrefixType.TINK