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## Uses of Interface
java.security.PublicKey

Packages that use PublicKey
java.security | Provides the classes and interfaces for the security framework.
java.security.cert | Provides classes and interfaces for parsing and managing certificates, certificate revocation lists (CRLs), and certification paths.
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.interfaces | Provides interfaces for Diffie-Hellman keys as defined in RSA Laboratories' PKCS #3.
javax.security.cert | Provides classes for public key certificates.

Uses of PublicKey in java.security

Methods in java.security that return PublicKey
`protected abstract PublicKey` | `KeyFactorySpi.engineGeneratePublic(KeySpec keySpec)` Generates a public key object from the provided key specification (key material).
`PublicKey` | `KeyFactory.generatePublic(KeySpec keySpec)` Generates a public key object from the provided key specification (key material).
`PublicKey` | `KeyPair.getPublic()` Returns a reference to the public key component of this key pair.
`PublicKey` | `Certificate.getPublicKey()` Deprecated. Returns the key of the principal-key pair being guaranteed by the guarantor.
`PublicKey` | `Identity.getPublicKey()` Deprecated. Returns this identity's public key.

Methods in java.security with parameters of type PublicKey
`boolean` | `SignedObject.verify(PublicKey verificationKey, Signature verificationEngine)` Verifies that the signature in this SignedObject is the valid signature for the object stored inside, with the given verification key, using the designated verification engine.
`protected abstract void` | `SignatureSpi.engineInitVerify(PublicKey publicKey)` Initializes this signature object with the specified public key for verification operations.
`void` | `Signature.initVerify(PublicKey publicKey)` Initializes this object for verification.
`void` | `Identity.setPublicKey(PublicKey key)` Deprecated. Sets this identity's public key.
`abstract Identity` | `IdentityScope.getIdentity(PublicKey key)` Deprecated. Retrieves the identity with the specified public key.

Constructors in java.security with parameters of type PublicKey
`KeyPair(PublicKey publicKey, PrivateKey privateKey)` Constructs a key pair from the given public key and private key.

Uses of PublicKey in java.security.cert

Methods in java.security.cert that return PublicKey
`PublicKey` | `X509CertSelector.getSubjectPublicKey()` Returns the subjectPublicKey criterion.
`PublicKey` | `TrustAnchor.getCAPublicKey()` Returns the public key of the most-trusted CA.
`PublicKey` | `PKIXCertPathValidatorResult.getPublicKey()` Returns the public key of the subject (target) of the certification path, including any inherited public key parameters if applicable.
`abstract PublicKey` | `Certificate.getPublicKey()` Gets the public key from this certificate.

Methods in java.security.cert with parameters of type PublicKey
`void` | `X509CertSelector.setSubjectPublicKey(PublicKey key)` Sets the subjectPublicKey criterion.
`abstract void` | `X509CRL.verify(PublicKey key)` Verifies that this CRL was signed using the private key that corresponds to the given public key.
`abstract void` | `X509CRL.verify(PublicKey key, String sigProvider)` Verifies that this CRL was signed using the private key that corresponds to the given public key.
`abstract void` | `Certificate.verify(PublicKey key)` Verifies that this certificate was signed using the private key that corresponds to the specified public key.
`abstract void` | `Certificate.verify(PublicKey key, String sigProvider)` Verifies that this certificate was signed using the private key that corresponds to the specified public key.

Constructors in java.security.cert with parameters of type PublicKey
`TrustAnchor(String caName, PublicKey pubKey, byte[] nameConstraints)` Creates an instance of `TrustAnchor` where the most-trusted CA is specified as a distinguished name and public key.
`PKIXCertPathValidatorResult(TrustAnchor trustAnchor, PolicyNode policyTree, PublicKey subjectPublicKey)` Creates an instance of `PKIXCertPathValidatorResult` containing the specified parameters.
`PKIXCertPathBuilderResult(CertPath certPath, TrustAnchor trustAnchor, PolicyNode policyTree, PublicKey subjectPublicKey)` Creates an instance of `PKIXCertPathBuilderResult` containing the specified parameters.

Uses of PublicKey in java.security.interfaces

Subinterfaces of PublicKey in java.security.interfaces
`interface` | `DSAPublicKey` The interface to a DSA public key.
`interface` | `RSAPublicKey` The interface to an RSA public key.

Uses of PublicKey in javax.crypto.interfaces

Subinterfaces of PublicKey in javax.crypto.interfaces
`interface` | `DHPublicKey` The interface to a Diffie-Hellman public key.

Uses of PublicKey in javax.security.cert

Methods in javax.security.cert that return PublicKey
`abstract PublicKey` | `Certificate.getPublicKey()` Gets the public key from this certificate.

Methods in javax.security.cert with parameters of type PublicKey
`abstract void` | `Certificate.verify(PublicKey key)` Verifies that this certificate was signed using the private key that corresponds to the specified public key.
`abstract void` | `Certificate.verify(PublicKey key, String sigProvider)` Verifies that this certificate was signed using the private key that corresponds to the specified public key.

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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