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Code Issues Releases Wiki Activity

Add documentation to PolicyAdapter

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This commit is contained in:
Paul Schaub 2025-02-28 12:32:42 +01:00
parent ac0c37925a
commit 63bdff58bf
Signed by: vanitasvitae
GPG key ID: 62BEE9264BF17311
1 changed files with 70 additions and 4 deletions
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74
pgpainless-core/src/main/kotlin/org/pgpainless/bouncycastle/PolicyAdapter.kt
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@ -9,8 +9,16 @@ import org.bouncycastle.openpgp.api.OpenPGPPolicy
import org.bouncycastle.openpgp.api.OpenPGPPolicy.OpenPGPNotationRegistry
import org.pgpainless.policy.Policy
/** Adapter class that adapts a PGPainless [Policy] object to Bouncy Castles [OpenPGPPolicy]. */
class PolicyAdapter(val policy: Policy = Policy.getInstance()) : OpenPGPPolicy {
/**
* Determine, whether the hash algorithm of a document signature is acceptable.
*
* @param algorithmId hash algorithm ID
* @param signatureCreationTime optional signature creation time
* @return boolean indicating whether the hash algorithm is acceptable
*/
override fun isAcceptableDocumentSignatureHashAlgorithm(
algorithmId: Int,
signatureCreationTime: Date?
@ -21,6 +29,13 @@ class PolicyAdapter(val policy: Policy = Policy.getInstance()) : OpenPGPPolicy {
policy.dataSignatureHashAlgorithmPolicy.isAcceptable(algorithmId, signatureCreationTime)
}
/**
* Determine, whether the hash algorithm of a revocation signature is acceptable.
*
* @param algorithmId hash algorithm ID
* @param revocationCreationTime optional revocation signature creation time
* @return boolean indicating whether the hash algorithm is acceptable
*/
override fun isAcceptableRevocationSignatureHashAlgorithm(
algorithmId: Int,
revocationCreationTime: Date?
@ -32,6 +47,13 @@ class PolicyAdapter(val policy: Policy = Policy.getInstance()) : OpenPGPPolicy {
algorithmId, revocationCreationTime)
}
/**
* Determine, whether the hash algorithm of a certification signature is acceptable.
*
* @param algorithmId hash algorithm ID
* @param certificationCreationTime optional certification signature creation time
* @return boolean indicating whether the hash algorithm is acceptable
*/
override fun isAcceptableCertificationSignatureHashAlgorithm(
algorithmId: Int,
certificationCreationTime: Date?
@ -43,32 +65,76 @@ class PolicyAdapter(val policy: Policy = Policy.getInstance()) : OpenPGPPolicy {
algorithmId, certificationCreationTime)
}
/**
* Return the default hash algorithm for certification signatures. This is used as fallback if
* not suitable hash algorithm can be negotiated.
*
* @return default certification signature hash algorithm
*/
override fun getDefaultCertificationSignatureHashAlgorithm(): Int {
return policy.certificationSignatureHashAlgorithmPolicy.defaultHashAlgorithm.algorithmId
}
/**
* Return the default hash algorithm for document signatures. This is used as fallback if not
* suitable hash algorithm can be negotiated.
*
* @return default document signature hash algorithm
*/
override fun getDefaultDocumentSignatureHashAlgorithm(): Int {
return policy.dataSignatureHashAlgorithmPolicy.defaultHashAlgorithm.algorithmId
}
override fun isAcceptableSymmetricKeyAlgorithm(p0: Int): Boolean {
return policy.symmetricKeyEncryptionAlgorithmPolicy.isAcceptable(p0)
/**
* Determine, whether the given symmetric encryption algorithm is acceptable.
*
* @param algorithmId symmetric encryption algorithm ID
* @return boolean indicating, whether the encryption algorithm is acceptable
*/
override fun isAcceptableSymmetricKeyAlgorithm(algorithmId: Int): Boolean {
return policy.symmetricKeyEncryptionAlgorithmPolicy.isAcceptable(algorithmId)
}
/**
* Return the default symmetric encryption algorithm. This algorithm is used as fallback to
* encrypt messages if no suitable symmetric encryption algorithm can be negotiated.
*
* @return default symmetric encryption algorithm
*/
override fun getDefaultSymmetricKeyAlgorithm(): Int {
return policy.symmetricKeyEncryptionAlgorithmPolicy.defaultSymmetricKeyAlgorithm.algorithmId
}
/**
* Determine, whether the [bitStrength] of an asymmetric public key of the given algorithm is
* strong enough.
*
* @param algorithmId public key algorithm ID
* @param bitStrength strength of the key in bits
* @return boolean indicating whether the bit strength is sufficient
*/
override fun isAcceptablePublicKeyStrength(algorithmId: Int, bitStrength: Int): Boolean {
return policy.publicKeyAlgorithmPolicy.isAcceptable(algorithmId, bitStrength)
}
override fun getNotationRegistry(): OpenPGPPolicy.OpenPGPNotationRegistry {
/**
* Adapt PGPainless' [org.pgpainless.util.NotationRegistry] to Bouncy Castles
* [OpenPGPNotationRegistry].
*
* @return adapted [OpenPGPNotationRegistry]
*/
override fun getNotationRegistry(): OpenPGPNotationRegistry {
return object : OpenPGPNotationRegistry() {
/** Determine, whether the given [notationName] is known by the registry. */
override fun isNotationKnown(notationName: String?): Boolean {
return notationName?.let { policy.notationRegistry.isKnownNotation(it) } ?: false
}
/**
* Add a known notation name to the registry.
*
* @param notationName notation name
*/
override fun addKnownNotation(notationName: String?) {
notationName?.let { policy.notationRegistry.addKnownNotation(it) }
}