diff options
Diffstat (limited to 'core/src/main/java/org/bouncycastle/crypto/generators/DESedeKeyGenerator.java')
-rw-r--r-- | core/src/main/java/org/bouncycastle/crypto/generators/DESedeKeyGenerator.java | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/core/src/main/java/org/bouncycastle/crypto/generators/DESedeKeyGenerator.java b/core/src/main/java/org/bouncycastle/crypto/generators/DESedeKeyGenerator.java deleted file mode 100644 index 3cab983d..00000000 --- a/core/src/main/java/org/bouncycastle/crypto/generators/DESedeKeyGenerator.java +++ /dev/null @@ -1,56 +0,0 @@ -package org.bouncycastle.crypto.generators; - -import org.bouncycastle.crypto.KeyGenerationParameters; -import org.bouncycastle.crypto.params.DESedeParameters; - -public class DESedeKeyGenerator - extends DESKeyGenerator -{ - /** - * initialise the key generator - if strength is set to zero - * the key generated will be 192 bits in size, otherwise - * strength can be 128 or 192 (or 112 or 168 if you don't count - * parity bits), depending on whether you wish to do 2-key or 3-key - * triple DES. - * - * @param param the parameters to be used for key generation - */ - public void init( - KeyGenerationParameters param) - { - this.random = param.getRandom(); - this.strength = (param.getStrength() + 7) / 8; - - if (strength == 0 || strength == (168 / 8)) - { - strength = DESedeParameters.DES_EDE_KEY_LENGTH; - } - else if (strength == (112 / 8)) - { - strength = 2 * DESedeParameters.DES_KEY_LENGTH; - } - else if (strength != DESedeParameters.DES_EDE_KEY_LENGTH - && strength != (2 * DESedeParameters.DES_KEY_LENGTH)) - { - throw new IllegalArgumentException("DESede key must be " - + (DESedeParameters.DES_EDE_KEY_LENGTH * 8) + " or " - + (2 * 8 * DESedeParameters.DES_KEY_LENGTH) - + " bits long."); - } - } - - public byte[] generateKey() - { - byte[] newKey = new byte[strength]; - - do - { - random.nextBytes(newKey); - - DESedeParameters.setOddParity(newKey); - } - while (DESedeParameters.isWeakKey(newKey, 0, newKey.length)); - - return newKey; - } -} |