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| author | Jeffrey Walton <noloader@gmail.com> | 2015-11-05 01:59:46 -0500 |
|---|---|---|
| committer | Jeffrey Walton <noloader@gmail.com> | 2015-11-05 01:59:46 -0500 |
| commit | 48809d4e85c125814425c621d8d0d89f95405924 (patch) | |
| tree | 1010fd16c4b1199f3d27dd726dda241a2bd29f83 /dsa.cpp | |
| parent | 025337a94aceb75d188149db70c2094673772816 (diff) | |
| download | cryptopp-git-48809d4e85c125814425c621d8d0d89f95405924.tar.gz | |
CRYPTOPP 5.6.3 RC6 checkin
Diffstat (limited to 'dsa.cpp')
| -rw-r--r-- | dsa.cpp | 129 |
1 files changed, 66 insertions, 63 deletions
@@ -1,63 +1,66 @@ -// dsa.cpp - written and placed in the public domain by Wei Dai - -#include "pch.h" - -#ifndef CRYPTOPP_IMPORTS - -#include "dsa.h" -#include "nbtheory.h" - -NAMESPACE_BEGIN(CryptoPP) - -size_t DSAConvertSignatureFormat(byte *buffer, size_t bufferSize, DSASignatureFormat toFormat, const byte *signature, size_t signatureLen, DSASignatureFormat fromFormat) -{ - Integer r, s; - StringStore store(signature, signatureLen); - ArraySink sink(buffer, bufferSize); - - switch (fromFormat) - { - case DSA_P1363: - r.Decode(store, signatureLen/2); - s.Decode(store, signatureLen/2); - break; - case DSA_DER: - { - BERSequenceDecoder seq(store); - r.BERDecode(seq); - s.BERDecode(seq); - seq.MessageEnd(); - break; - } - case DSA_OPENPGP: - r.OpenPGPDecode(store); - s.OpenPGPDecode(store); - break; - } - - switch (toFormat) - { - case DSA_P1363: - r.Encode(sink, bufferSize/2); - s.Encode(sink, bufferSize/2); - break; - case DSA_DER: - { - DERSequenceEncoder seq(sink); - r.DEREncode(seq); - s.DEREncode(seq); - seq.MessageEnd(); - break; - } - case DSA_OPENPGP: - r.OpenPGPEncode(sink); - s.OpenPGPEncode(sink); - break; - } - - return (size_t)sink.TotalPutLength(); -} - -NAMESPACE_END - -#endif +// dsa.cpp - written and placed in the public domain by Wei Dai
+
+#include "pch.h"
+
+#ifndef CRYPTOPP_IMPORTS
+
+#include "dsa.h"
+#include "asn.h"
+#include "integer.h"
+#include "filters.h"
+#include "nbtheory.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+size_t DSAConvertSignatureFormat(byte *buffer, size_t bufferSize, DSASignatureFormat toFormat, const byte *signature, size_t signatureLen, DSASignatureFormat fromFormat)
+{
+ Integer r, s;
+ StringStore store(signature, signatureLen);
+ ArraySink sink(buffer, bufferSize);
+
+ switch (fromFormat)
+ {
+ case DSA_P1363:
+ r.Decode(store, signatureLen/2);
+ s.Decode(store, signatureLen/2);
+ break;
+ case DSA_DER:
+ {
+ BERSequenceDecoder seq(store);
+ r.BERDecode(seq);
+ s.BERDecode(seq);
+ seq.MessageEnd();
+ break;
+ }
+ case DSA_OPENPGP:
+ r.OpenPGPDecode(store);
+ s.OpenPGPDecode(store);
+ break;
+ }
+
+ switch (toFormat)
+ {
+ case DSA_P1363:
+ r.Encode(sink, bufferSize/2);
+ s.Encode(sink, bufferSize/2);
+ break;
+ case DSA_DER:
+ {
+ DERSequenceEncoder seq(sink);
+ r.DEREncode(seq);
+ s.DEREncode(seq);
+ seq.MessageEnd();
+ break;
+ }
+ case DSA_OPENPGP:
+ r.OpenPGPEncode(sink);
+ s.OpenPGPEncode(sink);
+ break;
+ }
+
+ return (size_t)sink.TotalPutLength();
+}
+
+NAMESPACE_END
+
+#endif
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