/**
* Generate a new RSA key pair of given strength. The strength should be given in number of bytes,
* so for a 2048 bits key, you should use 256 (bytes) as the integer parameter. The minimum valid
* strength is 2.
*
* <p>The key public exponent will be 0x10001. The probability a chosen prime could not be a real
* prime will be smaller than 2^-{@value RSAKeyGenerationParameters#DEFAULT_CERTAINTY}.
*
* @param strength the strength in bytes.
* @return an new asymmetric key pair.
*/
public AsymmetricKeyPair generateKeyPair(int strength) {
return keyPairGenerator.generate(new RSAKeyGenerationParameters(strength));
}
/**
* Build a new instance with all custom parameters. The strength should be given in number of
* bytes, so for a 2048 bits key, you should use 256 (bytes) as the integer parameter. The minimum
* valid strength is 2. The exponent should be an odd number. The probability a chosen prime could
* not be a real prime will be smaller than 2^certainty.
*
* @param strength the key strength in bytes.
* @param publicExponent the public exponent.
* @param certainty certainty for prime evaluation.
* @return an new asymmetric key pair.
*/
public AsymmetricKeyPair generateKeyPair(int strength, BigInteger publicExponent, int certainty) {
return keyPairGenerator.generate(
new RSAKeyGenerationParameters(strength, publicExponent, certainty));
}
/**
* Generate a new RSA key pair.
*
* <p>The key strength will be {@value RSAKeyGenerationParameters#DEFAULT_STRENGTH}. The key
* public exponent will be 0x10001. The probability a chosen prime could not be a real prime will
* be smaller than 2^-{@value RSAKeyGenerationParameters#DEFAULT_CERTAINTY}.
*
* @return an new asymmetric key pair.
*/
public AsymmetricKeyPair generateKeyPair() {
return keyPairGenerator.generate();
}