Package org.bouncycastle.crypto.fips

Class FipsDRBG

java.lang.Object

org.bouncycastle.crypto.fips.FipsDRBG

public final class FipsDRBG
extends Object

Source class for FIPS approved implementations of Deterministic Random Bit Generators (DRBGs) from SP 800-90A.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	FipsDRBG.Base
static class	FipsDRBG.Builder	Builder for SecureRandom objects based on the FIPS DRBGs.

Field Summary

Fields

Modifier and Type	Field	Description
static final FipsDRBG.Base	CTR_AES_128	CTR DRBG - 128 bit AES
static final FipsDRBG.Base	CTR_AES_192	CTR DRBG - 192 bit AES
static final FipsDRBG.Base	CTR_AES_256	CTR DRBG - 256 bit AES
static final FipsDRBG.Base	CTR_Triple_DES_168	CTR DRBG - 3-Key TripleDES
static final FipsDRBG.Base	SHA1	HASH DRBG - SHA-1
static final FipsDRBG.Base	SHA1_HMAC	HMAC DRBG - SHA-1
static final FipsDRBG.Base	SHA224	HASH DRBG - SHA-224
static final FipsDRBG.Base	SHA224_HMAC	HMAC DRBG - SHA-224
static final FipsDRBG.Base	SHA256	HASH DRBG - SHA-256
static final FipsDRBG.Base	SHA256_HMAC	HMAC DRBG - SHA-256
static final FipsDRBG.Base	SHA384	HASH DRBG - SHA-384
static final FipsDRBG.Base	SHA384_HMAC	HMAC DRBG - SHA-384
static final FipsDRBG.Base	SHA512	HASH DRBG - SHA-512
static final FipsDRBG.Base	SHA512_224	HASH DRBG - SHA-512/224
static final FipsDRBG.Base	SHA512_224_HMAC	HMAC DRBG - SHA-512/224
static final FipsDRBG.Base	SHA512_256	HASH DRBG - SHA-512/256
static final FipsDRBG.Base	SHA512_256_HMAC	HMAC DRBG - SHA-512/256
static final FipsDRBG.Base	SHA512_HMAC	HMAC DRBG - SHA-512

Method Summary

Modifier and Type	Method	Description
static FipsSecureRandom	fetchBasicDRBG(Algorithm usage, FipsDRBG.Base drbgBase, byte[] personalizationString)	Return a basic DRBG created using the passed in Base and personalizationString with a system defined nonce and configured with prediction resistance set to false.
static EntropySourceProvider	getDefaultEntropySourceProvider()

Methods inherited from class java.lang.Object

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

Field Details

SHA1

public static final FipsDRBG.Base SHA1

HASH DRBG - SHA-1

SHA224

public static final FipsDRBG.Base SHA224

HASH DRBG - SHA-224

SHA256

public static final FipsDRBG.Base SHA256

HASH DRBG - SHA-256

SHA384

public static final FipsDRBG.Base SHA384

HASH DRBG - SHA-384

SHA512

public static final FipsDRBG.Base SHA512

HASH DRBG - SHA-512

SHA512_224

public static final FipsDRBG.Base SHA512_224

HASH DRBG - SHA-512/224

SHA512_256

public static final FipsDRBG.Base SHA512_256

HASH DRBG - SHA-512/256

SHA1_HMAC

public static final FipsDRBG.Base SHA1_HMAC

HMAC DRBG - SHA-1

SHA224_HMAC

public static final FipsDRBG.Base SHA224_HMAC

HMAC DRBG - SHA-224

SHA256_HMAC

public static final FipsDRBG.Base SHA256_HMAC

HMAC DRBG - SHA-256

SHA384_HMAC

public static final FipsDRBG.Base SHA384_HMAC

HMAC DRBG - SHA-384

SHA512_HMAC

public static final FipsDRBG.Base SHA512_HMAC

HMAC DRBG - SHA-512

SHA512_224_HMAC

public static final FipsDRBG.Base SHA512_224_HMAC

HMAC DRBG - SHA-512/224

SHA512_256_HMAC

public static final FipsDRBG.Base SHA512_256_HMAC

HMAC DRBG - SHA-512/256

CTR_Triple_DES_168

public static final FipsDRBG.Base CTR_Triple_DES_168

CTR DRBG - 3-Key TripleDES

CTR_AES_128

public static final FipsDRBG.Base CTR_AES_128

CTR DRBG - 128 bit AES

CTR_AES_192

public static final FipsDRBG.Base CTR_AES_192

CTR DRBG - 192 bit AES

CTR_AES_256

public static final FipsDRBG.Base CTR_AES_256

CTR DRBG - 256 bit AES

Method Details

getDefaultEntropySourceProvider

public static EntropySourceProvider getDefaultEntropySourceProvider()

fetchBasicDRBG

public static FipsSecureRandom fetchBasicDRBG(Algorithm usage,
 FipsDRBG.Base drbgBase,
 byte[] personalizationString)

Return a basic DRBG created using the passed in Base and personalizationString with a system defined nonce and configured with prediction resistance set to false.

Parameters:

usage - an algorithm object signifying the use of the DRBG.

drbgBase - the base to construct the DRBG from.

personalizationString - the personalizationString to use.

Returns:

an appropriate FipsSecureRandom