| Package | Description | 
|---|---|
| java.security | Provides the classes and interfaces for the security framework. | 
| java.security.interfaces | Provides interfaces for generating RSA (Rivest, Shamir and
 Adleman AsymmetricCipher algorithm)
 keys as defined in the RSA Laboratory Technical Note
 PKCS#1, and DSA (Digital Signature
 Algorithm) keys as defined in NIST's FIPS-186. | 
| javax.crypto | Provides the classes and interfaces for cryptographic operations. | 
| javax.net.ssl | Provides classes for the secure socket package. | 
| Modifier and Type | Field and Description | 
|---|---|
| protected SecureRandom | SignatureSpi. appRandomApplication-specified source of randomness. | 
| Modifier and Type | Method and Description | 
|---|---|
| static SecureRandom | SecureRandom. getInstance(String algorithm)Returns a SecureRandom object that implements the specified
 Random Number Generator (RNG) algorithm. | 
| static SecureRandom | SecureRandom. getInstance(String algorithm,
           Provider provider)Returns a SecureRandom object that implements the specified
 Random Number Generator (RNG) algorithm. | 
| static SecureRandom | SecureRandom. getInstance(String algorithm,
           String provider)Returns a SecureRandom object that implements the specified
 Random Number Generator (RNG) algorithm. | 
| static SecureRandom | SecureRandom. getInstanceStrong()Returns a  SecureRandomobject that was selected by using
 the algorithms/providers specified in thesecurerandom.strongAlgorithmsSecurityproperty. | 
| Modifier and Type | Method and Description | 
|---|---|
| protected abstract void | AlgorithmParameterGeneratorSpi. engineInit(AlgorithmParameterSpec genParamSpec,
          SecureRandom random)Initializes this parameter generator with a set of
 algorithm-specific parameter generation values. | 
| protected abstract void | AlgorithmParameterGeneratorSpi. engineInit(int size,
          SecureRandom random)Initializes this parameter generator for a certain size
 and source of randomness. | 
| protected void | SignatureSpi. engineInitSign(PrivateKey privateKey,
              SecureRandom random)Initializes this signature object with the specified
 private key and source of randomness for signing operations. | 
| void | AlgorithmParameterGenerator. init(AlgorithmParameterSpec genParamSpec,
    SecureRandom random)Initializes this parameter generator with a set of algorithm-specific
 parameter generation values. | 
| void | AlgorithmParameterGenerator. init(int size,
    SecureRandom random)Initializes this parameter generator for a certain size and source
 of randomness. | 
| void | KeyPairGeneratorSpi. initialize(AlgorithmParameterSpec params,
          SecureRandom random)Initializes the key pair generator using the specified parameter
 set and user-provided source of randomness. | 
| void | KeyPairGenerator. initialize(AlgorithmParameterSpec params,
          SecureRandom random)Initializes the key pair generator with the given parameter
 set and source of randomness. | 
| abstract void | KeyPairGeneratorSpi. initialize(int keysize,
          SecureRandom random)Initializes the key pair generator for a certain keysize, using
 the default parameter set. | 
| void | KeyPairGenerator. initialize(int keysize,
          SecureRandom random)Initializes the key pair generator for a certain keysize with
 the given source of randomness (and a default parameter set). | 
| void | Signature. initSign(PrivateKey privateKey,
        SecureRandom random)Initialize this object for signing. | 
| Modifier and Type | Method and Description | 
|---|---|
| void | DSAKeyPairGenerator. initialize(DSAParams params,
          SecureRandom random)Initializes the key pair generator using the DSA family parameters
 (p,q and g) and an optional SecureRandom bit source. | 
| void | DSAKeyPairGenerator. initialize(int modlen,
          boolean genParams,
          SecureRandom random)Initializes the key pair generator for a given modulus length
 (instead of parameters), and an optional SecureRandom bit source. | 
| Modifier and Type | Method and Description | 
|---|---|
| protected abstract void | KeyGeneratorSpi. engineInit(AlgorithmParameterSpec params,
          SecureRandom random)Initializes the key generator with the specified parameter
 set and a user-provided source of randomness. | 
| protected abstract void | CipherSpi. engineInit(int opmode,
          Key key,
          AlgorithmParameterSpec params,
          SecureRandom random)Initializes this cipher with a key, a set of
 algorithm parameters, and a source of randomness. | 
| protected abstract void | CipherSpi. engineInit(int opmode,
          Key key,
          AlgorithmParameters params,
          SecureRandom random)Initializes this cipher with a key, a set of
 algorithm parameters, and a source of randomness. | 
| protected abstract void | CipherSpi. engineInit(int opmode,
          Key key,
          SecureRandom random)Initializes this cipher with a key and a source
 of randomness. | 
| protected abstract void | KeyGeneratorSpi. engineInit(int keysize,
          SecureRandom random)Initializes this key generator for a certain keysize, using the given
 source of randomness. | 
| protected abstract void | KeyAgreementSpi. engineInit(Key key,
          AlgorithmParameterSpec params,
          SecureRandom random)Initializes this key agreement with the given key, set of
 algorithm parameters, and source of randomness. | 
| protected abstract void | KeyAgreementSpi. engineInit(Key key,
          SecureRandom random)Initializes this key agreement with the given key and source of
 randomness. | 
| protected abstract void | KeyGeneratorSpi. engineInit(SecureRandom random)Initializes the key generator. | 
| void | KeyGenerator. init(AlgorithmParameterSpec params,
    SecureRandom random)Initializes this key generator with the specified parameter
 set and a user-provided source of randomness. | 
| void | Cipher. init(int opmode,
    Certificate certificate,
    SecureRandom random)Initializes this cipher with the public key from the given certificate
 and
 a source of randomness. | 
| void | Cipher. init(int opmode,
    Key key,
    AlgorithmParameterSpec params,
    SecureRandom random)Initializes this cipher with a key, a set of algorithm
 parameters, and a source of randomness. | 
| void | Cipher. init(int opmode,
    Key key,
    AlgorithmParameters params,
    SecureRandom random)Initializes this cipher with a key, a set of algorithm
 parameters, and a source of randomness. | 
| void | Cipher. init(int opmode,
    Key key,
    SecureRandom random)Initializes this cipher with a key and a source of randomness. | 
| void | KeyGenerator. init(int keysize,
    SecureRandom random)Initializes this key generator for a certain keysize, using a
 user-provided source of randomness. | 
| void | KeyAgreement. init(Key key,
    AlgorithmParameterSpec params,
    SecureRandom random)Initializes this key agreement with the given key, set of
 algorithm parameters, and source of randomness. | 
| void | KeyAgreement. init(Key key,
    SecureRandom random)Initializes this key agreement with the given key and source of
 randomness. | 
| void | KeyGenerator. init(SecureRandom random)Initializes this key generator. | 
| Modifier and Type | Method and Description | 
|---|---|
| protected abstract void | SSLContextSpi. engineInit(KeyManager[] km,
          TrustManager[] tm,
          SecureRandom sr)Initializes this context. | 
| void | SSLContext. init(KeyManager[] km,
    TrustManager[] tm,
    SecureRandom random)Initializes this context. | 
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