diff options
Diffstat (limited to 'id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/protocols/oauth20/json/OAuthSignatureAlgorithm.java')
-rw-r--r-- | id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/protocols/oauth20/json/OAuthSignatureAlgorithm.java | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/protocols/oauth20/json/OAuthSignatureAlgorithm.java b/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/protocols/oauth20/json/OAuthSignatureAlgorithm.java new file mode 100644 index 000000000..5e023ff35 --- /dev/null +++ b/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/protocols/oauth20/json/OAuthSignatureAlgorithm.java @@ -0,0 +1,62 @@ +package at.gv.egovernment.moa.id.protocols.oauth20.json; + +import java.security.NoSuchAlgorithmException; +import java.security.NoSuchProviderException; +import java.security.Signature; + +import org.apache.commons.lang.StringUtils; + +/** + * Enum of the signature algorithms supported by this package. + */ +public enum OAuthSignatureAlgorithm { + ECDSA256("SHA256withECDSA", "ECDSA256", null), RS256("SHA256withRSA", "RS256", null), ECDSA256_IAKIK("SHA1withECDSA", "ECDSA256", + "IAIK_ECC"); + + private final String signatureName; + private final String algorithm; + private final String providerName; + + private OAuthSignatureAlgorithm(final String signatureName, final String hashAlg, final String providerName) { + this.signatureName = signatureName; + this.algorithm = hashAlg; + this.providerName = providerName; + } + + /** + * What the signature algorithm is named in the "alg" parameter in a JSON Token's envelope. + */ + public String getAlgorithm() { + return this.algorithm; + } + + /** + * + * @return the signature name like SHA256withECDSA or SHA256withRSA + */ + public String getSignatureName() { + return this.signatureName; + } + + /** + * Calls {@link Signature#getInstance(String)} with the defined signature name + * + * @return + * @throws NoSuchAlgorithmException + * @throws NoSuchProviderException + */ + public Signature getSignatureInstance() throws NoSuchAlgorithmException, NoSuchProviderException { + if (!StringUtils.isEmpty(this.providerName)) { + return Signature.getInstance(this.signatureName, this.providerName); + } else { + return Signature.getInstance(this.signatureName); + } + } + + /** + * Given the name of the algorithm in the envelope, returns the corresponding enum instance. + */ + public static OAuthSignatureAlgorithm getFromJsonName(String name) { + return OAuthSignatureAlgorithm.valueOf(name); + } +} |