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-rw-r--r--core/src/main/java/org/bouncycastle/crypto/prng/SP800SecureRandomBuilder.java290
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diff --git a/core/src/main/java/org/bouncycastle/crypto/prng/SP800SecureRandomBuilder.java b/core/src/main/java/org/bouncycastle/crypto/prng/SP800SecureRandomBuilder.java
deleted file mode 100644
index 59ea1010..00000000
--- a/core/src/main/java/org/bouncycastle/crypto/prng/SP800SecureRandomBuilder.java
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@@ -1,290 +0,0 @@
-package org.bouncycastle.crypto.prng;
-
-import java.security.SecureRandom;
-
-import org.bouncycastle.crypto.BlockCipher;
-import org.bouncycastle.crypto.Digest;
-import org.bouncycastle.crypto.Mac;
-import org.bouncycastle.crypto.prng.drbg.CTRSP800DRBG;
-import org.bouncycastle.crypto.prng.drbg.DualECPoints;
-import org.bouncycastle.crypto.prng.drbg.DualECSP800DRBG;
-import org.bouncycastle.crypto.prng.drbg.HMacSP800DRBG;
-import org.bouncycastle.crypto.prng.drbg.HashSP800DRBG;
-import org.bouncycastle.crypto.prng.drbg.SP80090DRBG;
-
-/**
- * Builder class for making SecureRandom objects based on SP 800-90A Deterministic Random Bit Generators (DRBG).
- */
-public class SP800SecureRandomBuilder
-{
- private final SecureRandom random;
- private final EntropySourceProvider entropySourceProvider;
-
- private byte[] personalizationString;
- private int securityStrength = 256;
- private int entropyBitsRequired = 256;
-
- /**
- * Basic constructor, creates a builder using an EntropySourceProvider based on the default SecureRandom with
- * predictionResistant set to false.
- * <p>
- * Any SecureRandom created from a builder constructed like this will make use of input passed to SecureRandom.setSeed() if
- * the default SecureRandom does for its generateSeed() call.
- * </p>
- */
- public SP800SecureRandomBuilder()
- {
- this(new SecureRandom(), false);
- }
-
- /**
- * Construct a builder with an EntropySourceProvider based on the passed in SecureRandom and the passed in value
- * for prediction resistance.
- * <p>
- * Any SecureRandom created from a builder constructed like this will make use of input passed to SecureRandom.setSeed() if
- * the passed in SecureRandom does for its generateSeed() call.
- * </p>
- * @param entropySource
- * @param predictionResistant
- */
- public SP800SecureRandomBuilder(SecureRandom entropySource, boolean predictionResistant)
- {
- this.random = entropySource;
- this.entropySourceProvider = new BasicEntropySourceProvider(random, predictionResistant);
- }
-
- /**
- * Create a builder which makes creates the SecureRandom objects from a specified entropy source provider.
- * <p>
- * <b>Note:</b> If this constructor is used any calls to setSeed() in the resulting SecureRandom will be ignored.
- * </p>
- * @param entropySourceProvider a provider of EntropySource objects.
- */
- public SP800SecureRandomBuilder(EntropySourceProvider entropySourceProvider)
- {
- this.random = null;
- this.entropySourceProvider = entropySourceProvider;
- }
-
- /**
- * Set the personalization string for DRBG SecureRandoms created by this builder
- * @param personalizationString the personalisation string for the underlying DRBG.
- * @return the current builder.
- */
- public SP800SecureRandomBuilder setPersonalizationString(byte[] personalizationString)
- {
- this.personalizationString = personalizationString;
-
- return this;
- }
-
- /**
- * Set the security strength required for DRBGs used in building SecureRandom objects.
- *
- * @param securityStrength the security strength (in bits)
- * @return the current builder.
- */
- public SP800SecureRandomBuilder setSecurityStrength(int securityStrength)
- {
- this.securityStrength = securityStrength;
-
- return this;
- }
-
- /**
- * Set the amount of entropy bits required for seeding and reseeding DRBGs used in building SecureRandom objects.
- *
- * @param entropyBitsRequired the number of bits of entropy to be requested from the entropy source on each seed/reseed.
- * @return the current builder.
- */
- public SP800SecureRandomBuilder setEntropyBitsRequired(int entropyBitsRequired)
- {
- this.entropyBitsRequired = entropyBitsRequired;
-
- return this;
- }
-
- /**
- * Build a SecureRandom based on a SP 800-90A Hash DRBG.
- *
- * @param digest digest algorithm to use in the DRBG underneath the SecureRandom.
- * @param nonce nonce value to use in DRBG construction.
- * @param predictionResistant specify whether the underlying DRBG in the resulting SecureRandom should reseed on each request for bytes.
- * @return a SecureRandom supported by a Hash DRBG.
- */
- public SP800SecureRandom buildHash(Digest digest, byte[] nonce, boolean predictionResistant)
- {
- return new SP800SecureRandom(random, entropySourceProvider.get(entropyBitsRequired), new HashDRBGProvider(digest, nonce, personalizationString, securityStrength), predictionResistant);
- }
-
- /**
- * Build a SecureRandom based on a SP 800-90A CTR DRBG.
- *
- * @param cipher the block cipher to base the DRBG on.
- * @param keySizeInBits key size in bits to be used with the block cipher.
- * @param nonce nonce value to use in DRBG construction.
- * @param predictionResistant specify whether the underlying DRBG in the resulting SecureRandom should reseed on each request for bytes.
- * @return a SecureRandom supported by a CTR DRBG.
- */
- public SP800SecureRandom buildCTR(BlockCipher cipher, int keySizeInBits, byte[] nonce, boolean predictionResistant)
- {
- return new SP800SecureRandom(random, entropySourceProvider.get(entropyBitsRequired), new CTRDRBGProvider(cipher, keySizeInBits, nonce, personalizationString, securityStrength), predictionResistant);
- }
-
- /**
- * Build a SecureRandom based on a SP 800-90A HMAC DRBG.
- *
- * @param hMac HMAC algorithm to use in the DRBG underneath the SecureRandom.
- * @param nonce nonce value to use in DRBG construction.
- * @param predictionResistant specify whether the underlying DRBG in the resulting SecureRandom should reseed on each request for bytes.
- * @return a SecureRandom supported by a HMAC DRBG.
- */
- public SP800SecureRandom buildHMAC(Mac hMac, byte[] nonce, boolean predictionResistant)
- {
- return new SP800SecureRandom(random, entropySourceProvider.get(entropyBitsRequired), new HMacDRBGProvider(hMac, nonce, personalizationString, securityStrength), predictionResistant);
- }
-
- /**
- * Build a SecureRandom based on a SP 800-90A Dual EC DRBG using the NIST point set.
- *
- * @param digest digest algorithm to use in the DRBG underneath the SecureRandom.
- * @param nonce nonce value to use in DRBG construction.
- * @param predictionResistant specify whether the underlying DRBG in the resulting SecureRandom should reseed on each request for bytes.
- * @return a SecureRandom supported by a Dual EC DRBG.
- */
- public SP800SecureRandom buildDualEC(Digest digest, byte[] nonce, boolean predictionResistant)
- {
- return new SP800SecureRandom(random, entropySourceProvider.get(entropyBitsRequired), new DualECDRBGProvider(digest, nonce, personalizationString, securityStrength), predictionResistant);
- }
-
- /**
- * Build a SecureRandom based on a SP 800-90A Dual EC DRBG according to a defined point set.
- *
- * @param pointSet an array of DualECPoints to use for DRB generation.
- * @param digest digest algorithm to use in the DRBG underneath the SecureRandom.
- * @param nonce nonce value to use in DRBG construction.
- * @param predictionResistant specify whether the underlying DRBG in the resulting SecureRandom should reseed on each request for bytes.
- * @return a SecureRandom supported by a Dual EC DRBG.
- */
- public SP800SecureRandom buildDualEC(DualECPoints[] pointSet, Digest digest, byte[] nonce, boolean predictionResistant)
- {
- return new SP800SecureRandom(random, entropySourceProvider.get(entropyBitsRequired), new ConfigurableDualECDRBGProvider(pointSet, digest, nonce, personalizationString, securityStrength), predictionResistant);
- }
-
-
- private static class HashDRBGProvider
- implements DRBGProvider
- {
- private final Digest digest;
- private final byte[] nonce;
- private final byte[] personalizationString;
- private final int securityStrength;
-
- public HashDRBGProvider(Digest digest, byte[] nonce, byte[] personalizationString, int securityStrength)
- {
- this.digest = digest;
- this.nonce = nonce;
- this.personalizationString = personalizationString;
- this.securityStrength = securityStrength;
- }
-
- public SP80090DRBG get(EntropySource entropySource)
- {
- return new HashSP800DRBG(digest, securityStrength, entropySource, personalizationString, nonce);
- }
- }
-
- private static class DualECDRBGProvider
- implements DRBGProvider
- {
- private final Digest digest;
- private final byte[] nonce;
- private final byte[] personalizationString;
- private final int securityStrength;
-
- public DualECDRBGProvider(Digest digest, byte[] nonce, byte[] personalizationString, int securityStrength)
- {
- this.digest = digest;
- this.nonce = nonce;
- this.personalizationString = personalizationString;
- this.securityStrength = securityStrength;
- }
-
- public SP80090DRBG get(EntropySource entropySource)
- {
- return new DualECSP800DRBG(digest, securityStrength, entropySource, personalizationString, nonce);
- }
- }
-
- private static class ConfigurableDualECDRBGProvider
- implements DRBGProvider
- {
- private final DualECPoints[] pointSet;
- private final Digest digest;
- private final byte[] nonce;
- private final byte[] personalizationString;
- private final int securityStrength;
-
- public ConfigurableDualECDRBGProvider(DualECPoints[] pointSet, Digest digest, byte[] nonce, byte[] personalizationString, int securityStrength)
- {
- this.pointSet = new DualECPoints[pointSet.length];
- System.arraycopy(pointSet, 0, this.pointSet, 0, pointSet.length);
- this.digest = digest;
- this.nonce = nonce;
- this.personalizationString = personalizationString;
- this.securityStrength = securityStrength;
- }
-
- public SP80090DRBG get(EntropySource entropySource)
- {
- return new DualECSP800DRBG(pointSet, digest, securityStrength, entropySource, personalizationString, nonce);
- }
- }
-
- private static class HMacDRBGProvider
- implements DRBGProvider
- {
- private final Mac hMac;
- private final byte[] nonce;
- private final byte[] personalizationString;
- private final int securityStrength;
-
- public HMacDRBGProvider(Mac hMac, byte[] nonce, byte[] personalizationString, int securityStrength)
- {
- this.hMac = hMac;
- this.nonce = nonce;
- this.personalizationString = personalizationString;
- this.securityStrength = securityStrength;
- }
-
- public SP80090DRBG get(EntropySource entropySource)
- {
- return new HMacSP800DRBG(hMac, securityStrength, entropySource, personalizationString, nonce);
- }
- }
-
- private static class CTRDRBGProvider
- implements DRBGProvider
- {
-
- private final BlockCipher blockCipher;
- private final int keySizeInBits;
- private final byte[] nonce;
- private final byte[] personalizationString;
- private final int securityStrength;
-
- public CTRDRBGProvider(BlockCipher blockCipher, int keySizeInBits, byte[] nonce, byte[] personalizationString, int securityStrength)
- {
- this.blockCipher = blockCipher;
- this.keySizeInBits = keySizeInBits;
- this.nonce = nonce;
- this.personalizationString = personalizationString;
- this.securityStrength = securityStrength;
- }
-
- public SP80090DRBG get(EntropySource entropySource)
- {
- return new CTRSP800DRBG(blockCipher, keySizeInBits, securityStrength, entropySource, personalizationString, nonce);
- }
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-23 07:15:43 +0300