diff options
Diffstat (limited to 'crypto/src/asn1/x9/X9ECParameters.cs')
| -rw-r--r-- | crypto/src/asn1/x9/X9ECParameters.cs | 27 |
1 files changed, 12 insertions, 15 deletions
diff --git a/crypto/src/asn1/x9/X9ECParameters.cs b/crypto/src/asn1/x9/X9ECParameters.cs index 0fa343768..e1b29ca13 100644 --- a/crypto/src/asn1/x9/X9ECParameters.cs +++ b/crypto/src/asn1/x9/X9ECParameters.cs @@ -23,29 +23,32 @@ namespace Org.BouncyCastle.Asn1.X9 public static X9ECParameters GetInstance(Object obj) { if (obj is X9ECParameters) - { return (X9ECParameters)obj; - } - if (obj != null) - { + if (obj != null) return new X9ECParameters(Asn1Sequence.GetInstance(obj)); - } - return null; + return null; } public X9ECParameters( Asn1Sequence seq) { if (!(seq[0] is DerInteger) - || !((DerInteger) seq[0]).Value.Equals(BigInteger.One)) + || !((DerInteger)seq[0]).Value.Equals(BigInteger.One)) { throw new ArgumentException("bad version in X9ECParameters"); } + this.n = ((DerInteger)seq[4]).Value; + + if (seq.Count == 6) + { + this.h = ((DerInteger)seq[5]).Value; + } + X9Curve x9c = new X9Curve( - X9FieldID.GetInstance(seq[1]), + X9FieldID.GetInstance(seq[1]), n, h, Asn1Sequence.GetInstance(seq[2])); this.curve = x9c.Curve; @@ -53,20 +56,14 @@ namespace Org.BouncyCastle.Asn1.X9 if (p is X9ECPoint) { - this.g = ((X9ECPoint)p); + this.g = (X9ECPoint)p; } else { this.g = new X9ECPoint(curve, (Asn1OctetString)p); } - this.n = ((DerInteger)seq[4]).Value; this.seed = x9c.GetSeed(); - - if (seq.Count == 6) - { - this.h = ((DerInteger)seq[5]).Value; - } } public X9ECParameters( |