diff options
| author | David Hook <dgh@cryptoworkshop.com> | 2014-04-26 12:06:10 +0400 |
|---|---|---|
| committer | David Hook <dgh@cryptoworkshop.com> | 2014-04-26 12:06:10 +0400 |
| commit | fc7a02ec0bf1f56e2441e1eb87f6677786ff4c65 (patch) | |
| tree | 3dc61407862c859902d405b6684c47d08f97ccb3 /core/src/main/java/org | |
| parent | 66a68ffa5fe58dc35fa8f69eb2e6ffe3115c98fc (diff) | |
deprecated NTRU signer.
Diffstat (limited to 'core/src/main/java/org')
| -rw-r--r-- | core/src/main/java/org/bouncycastle/pqc/crypto/ntru/NTRUSigner.java | 8 | ||||
| -rw-r--r-- | core/src/main/java/org/bouncycastle/pqc/crypto/ntru/NTRUSigningKeyGenerationParameters.java | 8 |
2 files changed, 10 insertions, 6 deletions
diff --git a/core/src/main/java/org/bouncycastle/pqc/crypto/ntru/NTRUSigner.java b/core/src/main/java/org/bouncycastle/pqc/crypto/ntru/NTRUSigner.java index 0b8a0788..19bf8024 100644 --- a/core/src/main/java/org/bouncycastle/pqc/crypto/ntru/NTRUSigner.java +++ b/core/src/main/java/org/bouncycastle/pqc/crypto/ntru/NTRUSigner.java @@ -8,8 +8,12 @@ import org.bouncycastle.pqc.math.ntru.polynomial.IntegerPolynomial; import org.bouncycastle.pqc.math.ntru.polynomial.Polynomial; /** - * Signs, verifies data and generates key pairs. - */ +* Signs, verifies data and generates key pairs. +* @deprecated the NTRUSigner algorithm was broken in 2012 by Ducas and Nguyen. See +* <a href="http://www.di.ens.fr/~ducas/NTRUSign_Cryptanalysis/DucasNguyen_Learning.pdf"> +* http://www.di.ens.fr/~ducas/NTRUSign_Cryptanalysis/DucasNguyen_Learning.pdf</a> +* for details. +*/ public class NTRUSigner { private NTRUSigningParameters params; diff --git a/core/src/main/java/org/bouncycastle/pqc/crypto/ntru/NTRUSigningKeyGenerationParameters.java b/core/src/main/java/org/bouncycastle/pqc/crypto/ntru/NTRUSigningKeyGenerationParameters.java index 90c243eb..b6ff8c5a 100644 --- a/core/src/main/java/org/bouncycastle/pqc/crypto/ntru/NTRUSigningKeyGenerationParameters.java +++ b/core/src/main/java/org/bouncycastle/pqc/crypto/ntru/NTRUSigningKeyGenerationParameters.java @@ -29,22 +29,22 @@ public class NTRUSigningKeyGenerationParameters /** * Gives 128 bits of security */ - public static final NTRUSigningKeyGenerationParameters APR2011_439 = new NTRUSigningKeyGenerationParameters(439, 2048, 146, 1, BASIS_TYPE_TRANSPOSE, 0.165, 400, 280, false, true, KEY_GEN_ALG_RESULTANT, new SHA256Digest()); + public static final NTRUSigningKeyGenerationParameters APR2011_439 = new NTRUSigningKeyGenerationParameters(439, 2048, 146, 1, BASIS_TYPE_TRANSPOSE, 0.165, 490, 280, false, true, KEY_GEN_ALG_RESULTANT, new SHA256Digest()); /** * Like <code>APR2011_439</code>, this parameter set gives 128 bits of security but uses product-form polynomials */ - public static final NTRUSigningKeyGenerationParameters APR2011_439_PROD = new NTRUSigningKeyGenerationParameters(439, 2048, 9, 8, 5, 1, BASIS_TYPE_TRANSPOSE, 0.165, 400, 280, false, true, KEY_GEN_ALG_RESULTANT, new SHA256Digest()); + public static final NTRUSigningKeyGenerationParameters APR2011_439_PROD = new NTRUSigningKeyGenerationParameters(439, 2048, 9, 8, 5, 1, BASIS_TYPE_TRANSPOSE, 0.165, 490, 280, false, true, KEY_GEN_ALG_RESULTANT, new SHA256Digest()); /** * Gives 256 bits of security */ - public static final NTRUSigningKeyGenerationParameters APR2011_743 = new NTRUSigningKeyGenerationParameters(743, 2048, 248, 1, BASIS_TYPE_TRANSPOSE, 0.127, 405, 360, true, false, KEY_GEN_ALG_RESULTANT, new SHA512Digest()); + public static final NTRUSigningKeyGenerationParameters APR2011_743 = new NTRUSigningKeyGenerationParameters(743, 2048, 248, 1, BASIS_TYPE_TRANSPOSE, 0.127, 560, 360, true, false, KEY_GEN_ALG_RESULTANT, new SHA512Digest()); /** * Like <code>APR2011_439</code>, this parameter set gives 256 bits of security but uses product-form polynomials */ - public static final NTRUSigningKeyGenerationParameters APR2011_743_PROD = new NTRUSigningKeyGenerationParameters(743, 2048, 11, 11, 15, 1, BASIS_TYPE_TRANSPOSE, 0.127, 405, 360, true, false, KEY_GEN_ALG_RESULTANT, new SHA512Digest()); + public static final NTRUSigningKeyGenerationParameters APR2011_743_PROD = new NTRUSigningKeyGenerationParameters(743, 2048, 11, 11, 15, 1, BASIS_TYPE_TRANSPOSE, 0.127, 560, 360, true, false, KEY_GEN_ALG_RESULTANT, new SHA512Digest()); /** * Generates key pairs quickly. Use for testing only. |