diff options
Diffstat (limited to 'crypto/src/asn1/pkcs/RSAESOAEPparams.cs')
-rw-r--r-- | crypto/src/asn1/pkcs/RSAESOAEPparams.cs | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/crypto/src/asn1/pkcs/RSAESOAEPparams.cs b/crypto/src/asn1/pkcs/RSAESOAEPparams.cs deleted file mode 100644 index 5ecb394fd..000000000 --- a/crypto/src/asn1/pkcs/RSAESOAEPparams.cs +++ /dev/null @@ -1,145 +0,0 @@ -using System; - -using Org.BouncyCastle.Asn1.Oiw; -using Org.BouncyCastle.Asn1.X509; - -namespace Org.BouncyCastle.Asn1.Pkcs -{ - public class RsaesOaepParameters - : Asn1Encodable - { - private AlgorithmIdentifier hashAlgorithm; - private AlgorithmIdentifier maskGenAlgorithm; - private AlgorithmIdentifier pSourceAlgorithm; - - public readonly static AlgorithmIdentifier DefaultHashAlgorithm = new AlgorithmIdentifier(OiwObjectIdentifiers.IdSha1, DerNull.Instance); - public readonly static AlgorithmIdentifier DefaultMaskGenFunction = new AlgorithmIdentifier(PkcsObjectIdentifiers.IdMgf1, DefaultHashAlgorithm); - public readonly static AlgorithmIdentifier DefaultPSourceAlgorithm = new AlgorithmIdentifier(PkcsObjectIdentifiers.IdPSpecified, new DerOctetString(new byte[0])); - - public static RsaesOaepParameters GetInstance( - object obj) - { - if (obj is RsaesOaepParameters) - { - return (RsaesOaepParameters)obj; - } - else if (obj is Asn1Sequence) - { - return new RsaesOaepParameters((Asn1Sequence)obj); - } - - throw new ArgumentException("Unknown object in factory: " + obj.GetType().FullName, "obj"); - } - - /** - * The default version - */ - public RsaesOaepParameters() - { - hashAlgorithm = DefaultHashAlgorithm; - maskGenAlgorithm = DefaultMaskGenFunction; - pSourceAlgorithm = DefaultPSourceAlgorithm; - } - - public RsaesOaepParameters( - AlgorithmIdentifier hashAlgorithm, - AlgorithmIdentifier maskGenAlgorithm, - AlgorithmIdentifier pSourceAlgorithm) - { - this.hashAlgorithm = hashAlgorithm; - this.maskGenAlgorithm = maskGenAlgorithm; - this.pSourceAlgorithm = pSourceAlgorithm; - } - - public RsaesOaepParameters( - Asn1Sequence seq) - { - hashAlgorithm = DefaultHashAlgorithm; - maskGenAlgorithm = DefaultMaskGenFunction; - pSourceAlgorithm = DefaultPSourceAlgorithm; - - for (int i = 0; i != seq.Count; i++) - { - Asn1TaggedObject o = (Asn1TaggedObject)seq[i]; - - switch (o.TagNo) - { - case 0: - hashAlgorithm = AlgorithmIdentifier.GetInstance(o, true); - break; - case 1: - maskGenAlgorithm = AlgorithmIdentifier.GetInstance(o, true); - break; - case 2: - pSourceAlgorithm = AlgorithmIdentifier.GetInstance(o, true); - break; - default: - throw new ArgumentException("unknown tag"); - } - } - } - - public AlgorithmIdentifier HashAlgorithm - { - get { return hashAlgorithm; } - } - - public AlgorithmIdentifier MaskGenAlgorithm - { - get { return maskGenAlgorithm; } - } - - public AlgorithmIdentifier PSourceAlgorithm - { - get { return pSourceAlgorithm; } - } - - /** - * <pre> - * RSAES-OAEP-params ::= SEQUENCE { - * hashAlgorithm [0] OAEP-PSSDigestAlgorithms DEFAULT sha1, - * maskGenAlgorithm [1] PKCS1MGFAlgorithms DEFAULT mgf1SHA1, - * pSourceAlgorithm [2] PKCS1PSourceAlgorithms DEFAULT pSpecifiedEmpty - * } - * - * OAEP-PSSDigestAlgorithms ALGORITHM-IDENTIFIER ::= { - * { OID id-sha1 PARAMETERS NULL }| - * { OID id-sha256 PARAMETERS NULL }| - * { OID id-sha384 PARAMETERS NULL }| - * { OID id-sha512 PARAMETERS NULL }, - * ... -- Allows for future expansion -- - * } - * PKCS1MGFAlgorithms ALGORITHM-IDENTIFIER ::= { - * { OID id-mgf1 PARAMETERS OAEP-PSSDigestAlgorithms }, - * ... -- Allows for future expansion -- - * } - * PKCS1PSourceAlgorithms ALGORITHM-IDENTIFIER ::= { - * { OID id-pSpecified PARAMETERS OCTET STRING }, - * ... -- Allows for future expansion -- - * } - * </pre> - * @return the asn1 primitive representing the parameters. - */ - public override Asn1Object ToAsn1Object() - { - Asn1EncodableVector v = new Asn1EncodableVector(); - - if (!hashAlgorithm.Equals(DefaultHashAlgorithm)) - { - v.Add(new DerTaggedObject(true, 0, hashAlgorithm)); - } - - if (!maskGenAlgorithm.Equals(DefaultMaskGenFunction)) - { - v.Add(new DerTaggedObject(true, 1, maskGenAlgorithm)); - } - - if (!pSourceAlgorithm.Equals(DefaultPSourceAlgorithm)) - { - v.Add(new DerTaggedObject(true, 2, pSourceAlgorithm)); - } - - return new DerSequence(v); - } - } -} |