Source tree reorganization

src/secp256k1.cpp

@@ -0,0 +1,38 @@
+#include "num.cpp"
+#include "field.cpp"
+#include "group.cpp"
+#include "ecmult.cpp"
+#include "ecdsa.cpp"
+
+namespace secp256k1 {
+
+int VerifyECDSA(const unsigned char *msg, int msglen, const unsigned char *sig, int siglen, const unsigned char *pubkey, int pubkeylen) {
+    int ret = -3;
+    secp256k1_num_t m; 
+    secp256k1_num_init(&m);
+    Signature s;
+    GroupElemJac q;
+    secp256k1_num_set_bin(&m, msg, msglen);
+    if (!ParsePubKey(q, pubkey, pubkeylen)) {
+        ret = -1;
+        goto end;
+    }
+    if (!s.Parse(sig, siglen)) {
+        fprintf(stderr, "Can't parse signature: ");
+        for (int i=0; i<siglen; i++) fprintf(stderr,"%02x", sig[i]);
+        fprintf(stderr, "\n");
+        ret = -2;
+        goto end;
+    }
+    if (!s.Verify(q, m)) {
+        ret = 0;
+        goto end;
+    }
+    ret = 1;
+end:
+    secp256k1_num_free(&m);
+    return ret;
+}
+
+
+}