Add DSA support to EVP.

Sadly, it turns out that we have need of this, at least for now. The
code is taken from upstream and changed only as much as needed.

This only imports keys and doesn't know how to actually perform
operations on them for now.

Change-Id: I0db70fb938186cb7a91d03f068b386c59ed90b84
diff --git a/crypto/evp/evp_test.cc b/crypto/evp/evp_test.cc
index e2deed7..a63f087 100644
--- a/crypto/evp/evp_test.cc
+++ b/crypto/evp/evp_test.cc
@@ -86,6 +86,81 @@
     0x2d, 0x86, 0x9d, 0xa5, 0x20, 0x1b, 0xe5, 0xdf,
 };
 
+static const uint8_t kExampleDSAKeyDER[] = {
+    0x30, 0x82, 0x03, 0x56, 0x02, 0x01, 0x00, 0x02, 0x82, 0x01, 0x01, 0x00,
+    0x9e, 0x12, 0xfa, 0xb3, 0xde, 0x12, 0x21, 0x35, 0x01, 0xdd, 0x82, 0xaa,
+    0x10, 0xca, 0x2d, 0x10, 0x1d, 0x2d, 0x4e, 0xbf, 0xef, 0x4d, 0x2a, 0x3f,
+    0x8d, 0xaa, 0x0f, 0xe0, 0xce, 0xda, 0xd8, 0xd6, 0xaf, 0x85, 0x61, 0x6a,
+    0xa2, 0xf3, 0x25, 0x2c, 0x0a, 0x2b, 0x5a, 0x6d, 0xb0, 0x9e, 0x6f, 0x14,
+    0x90, 0x0e, 0x0d, 0xdb, 0x83, 0x11, 0x87, 0x6d, 0xd8, 0xf9, 0x66, 0x95,
+    0x25, 0xf9, 0x9e, 0xd6, 0x59, 0x49, 0xe1, 0x84, 0xd5, 0x06, 0x47, 0x93,
+    0x27, 0x11, 0x69, 0xa2, 0x28, 0x68, 0x0b, 0x95, 0xec, 0x12, 0xf5, 0x9a,
+    0x8e, 0x20, 0xb2, 0x1f, 0x2b, 0x58, 0xeb, 0x2a, 0x20, 0x12, 0xd3, 0x5b,
+    0xde, 0x2e, 0xe3, 0x51, 0x82, 0x2f, 0xe8, 0xf3, 0x2d, 0x0a, 0x33, 0x05,
+    0x65, 0xdc, 0xce, 0x5c, 0x67, 0x2b, 0x72, 0x59, 0xc1, 0x4b, 0x24, 0x33,
+    0xd0, 0xb5, 0xb2, 0xca, 0x2b, 0x2d, 0xb0, 0xab, 0x62, 0x6e, 0x8f, 0x13,
+    0xf4, 0x7f, 0xe0, 0x34, 0x5d, 0x90, 0x4e, 0x72, 0x94, 0xbb, 0x03, 0x8e,
+    0x9c, 0xe2, 0x1a, 0x9e, 0x58, 0x0b, 0x83, 0x35, 0x62, 0x78, 0x70, 0x6c,
+    0xfe, 0x76, 0x84, 0x36, 0xc6, 0x9d, 0xe1, 0x49, 0xcc, 0xff, 0x98, 0xb4,
+    0xaa, 0xb8, 0xcb, 0x4f, 0x63, 0x85, 0xc9, 0xf1, 0x02, 0xce, 0x59, 0x34,
+    0x6e, 0xae, 0xef, 0x27, 0xe0, 0xad, 0x22, 0x2d, 0x53, 0xd6, 0xe8, 0x9c,
+    0xc8, 0xcd, 0xe5, 0x77, 0x6d, 0xd0, 0x00, 0x57, 0xb0, 0x3f, 0x2d, 0x88,
+    0xab, 0x3c, 0xed, 0xba, 0xfd, 0x7b, 0x58, 0x5f, 0x0b, 0x7f, 0x78, 0x35,
+    0xe1, 0x7a, 0x37, 0x28, 0xbb, 0xf2, 0x5e, 0xa6, 0x25, 0x72, 0xf2, 0x45,
+    0xdc, 0x11, 0x1f, 0x3c, 0xe3, 0x9c, 0xb6, 0xff, 0xac, 0xc3, 0x1b, 0x0a,
+    0x27, 0x90, 0xe7, 0xbd, 0xe9, 0x02, 0x24, 0xea, 0x9b, 0x09, 0x31, 0x53,
+    0x62, 0xaf, 0x3d, 0x2b, 0x02, 0x21, 0x00, 0xf3, 0x81, 0xdc, 0xf5, 0x3e,
+    0xbf, 0x72, 0x4f, 0x8b, 0x2e, 0x5c, 0xa8, 0x2c, 0x01, 0x0f, 0xb4, 0xb5,
+    0xed, 0xa9, 0x35, 0x8d, 0x0f, 0xd8, 0x8e, 0xd2, 0x78, 0x58, 0x94, 0x88,
+    0xb5, 0x4f, 0xc3, 0x02, 0x82, 0x01, 0x00, 0x0c, 0x40, 0x2a, 0x72, 0x5d,
+    0xcc, 0x3a, 0x62, 0xe0, 0x2b, 0xf4, 0xcf, 0x43, 0xcd, 0x17, 0xf4, 0xa4,
+    0x93, 0x59, 0x12, 0x20, 0x22, 0x36, 0x69, 0xcf, 0x41, 0x93, 0xed, 0xab,
+    0x42, 0x3a, 0xd0, 0x8d, 0xfb, 0x55, 0x2e, 0x30, 0x8a, 0x6a, 0x57, 0xa5,
+    0xff, 0xbc, 0x7c, 0xd0, 0xfb, 0x20, 0x87, 0xf8, 0x1f, 0x8d, 0xf0, 0xcb,
+    0x08, 0xab, 0x21, 0x33, 0x28, 0x7d, 0x2b, 0x69, 0x68, 0x71, 0x4a, 0x94,
+    0xf6, 0x33, 0xc9, 0x40, 0x84, 0x5a, 0x48, 0xa3, 0xe1, 0x67, 0x08, 0xdd,
+    0xe7, 0x61, 0xcc, 0x6a, 0x8e, 0xab, 0x2d, 0x84, 0xdb, 0x21, 0xb6, 0xea,
+    0x5b, 0x07, 0x68, 0x14, 0x93, 0xcc, 0x9c, 0x31, 0xfb, 0xc3, 0x68, 0xb2,
+    0x43, 0xf6, 0xdd, 0xf8, 0xc9, 0x32, 0xa8, 0xb4, 0x03, 0x8f, 0x44, 0xe7,
+    0xb1, 0x5c, 0xa8, 0x76, 0x34, 0x4a, 0x14, 0x78, 0x59, 0xf2, 0xb4, 0x3b,
+    0x39, 0x45, 0x86, 0x68, 0xad, 0x5e, 0x0a, 0x1a, 0x9a, 0x66, 0x95, 0x46,
+    0xdd, 0x28, 0x12, 0xe3, 0xb3, 0x61, 0x7a, 0x0a, 0xef, 0x99, 0xd5, 0x8e,
+    0x3b, 0xb4, 0xcc, 0x87, 0xfd, 0x94, 0x22, 0x5e, 0x01, 0xd2, 0xdc, 0xc4,
+    0x69, 0xa7, 0x72, 0x68, 0x14, 0x6c, 0x51, 0x91, 0x8f, 0x18, 0xe8, 0xb4,
+    0xd7, 0x0a, 0xa1, 0xf0, 0xc7, 0x62, 0x3b, 0xcc, 0x52, 0xcf, 0x37, 0x31,
+    0xd3, 0x86, 0x41, 0xb2, 0xd2, 0x83, 0x0b, 0x7e, 0xec, 0xb2, 0xf0, 0x95,
+    0x52, 0xff, 0x13, 0x7d, 0x04, 0x6e, 0x49, 0x4e, 0x7f, 0x33, 0xc3, 0x59,
+    0x00, 0x02, 0xb1, 0x6d, 0x1b, 0x97, 0xd9, 0x36, 0xfd, 0xa2, 0x8f, 0x90,
+    0xc3, 0xed, 0x3c, 0xa3, 0x53, 0x38, 0x16, 0x8a, 0xc1, 0x6f, 0x77, 0xc3,
+    0xc5, 0x7a, 0xdc, 0x2e, 0x8f, 0x7c, 0x6c, 0x22, 0x56, 0xe4, 0x1a, 0x5f,
+    0x65, 0x45, 0x05, 0x90, 0xdb, 0xb5, 0xbc, 0xf0, 0x6d, 0x66, 0x61, 0x02,
+    0x82, 0x01, 0x00, 0x31, 0x97, 0x31, 0xa1, 0x4e, 0x38, 0x56, 0x88, 0xdb,
+    0x94, 0x1d, 0xbf, 0x65, 0x5c, 0xda, 0x4b, 0xc2, 0x10, 0xde, 0x74, 0x20,
+    0x03, 0xce, 0x13, 0x60, 0xf2, 0x25, 0x1d, 0x55, 0x7c, 0x5d, 0x94, 0x82,
+    0x54, 0x08, 0x53, 0xdb, 0x85, 0x95, 0xbf, 0xdd, 0x5e, 0x50, 0xd5, 0x96,
+    0xe0, 0x79, 0x51, 0x1b, 0xbf, 0x4d, 0x4e, 0xb9, 0x3a, 0xc5, 0xee, 0xc4,
+    0x5e, 0x98, 0x75, 0x7b, 0xbe, 0xff, 0x30, 0xe6, 0xd0, 0x7b, 0xa6, 0xf1,
+    0xbc, 0x29, 0xea, 0xdf, 0xec, 0xf3, 0x8b, 0xfa, 0x83, 0x11, 0x9f, 0x3f,
+    0xf0, 0x5d, 0x06, 0x51, 0x32, 0xaa, 0x21, 0xfc, 0x26, 0x17, 0xe7, 0x50,
+    0xc2, 0x16, 0xba, 0xfa, 0x54, 0xb7, 0x7e, 0x1d, 0x2c, 0xa6, 0xa3, 0x41,
+    0x66, 0x33, 0x94, 0x83, 0xb9, 0xbf, 0xa0, 0x4f, 0xbd, 0xa6, 0xfd, 0x2c,
+    0x81, 0x58, 0x35, 0x33, 0x39, 0xc0, 0x6d, 0x33, 0x40, 0x56, 0x64, 0x12,
+    0x5a, 0xcd, 0x35, 0x53, 0x21, 0x78, 0x8f, 0x27, 0x24, 0x37, 0x66, 0x8a,
+    0xdf, 0x5e, 0x5f, 0x63, 0xfc, 0x8b, 0x2d, 0xef, 0x57, 0xdb, 0x40, 0x25,
+    0xd5, 0x17, 0x53, 0x0b, 0xe4, 0xa5, 0xae, 0x54, 0xbf, 0x46, 0x4f, 0xa6,
+    0x79, 0xc3, 0x74, 0xfa, 0x1f, 0x85, 0x34, 0x64, 0x6d, 0xc5, 0x03, 0xeb,
+    0x72, 0x98, 0x80, 0x7b, 0xc0, 0x8f, 0x35, 0x11, 0xa7, 0x09, 0xeb, 0x51,
+    0xe0, 0xb0, 0xac, 0x92, 0x14, 0xf2, 0xad, 0x37, 0x95, 0x5a, 0xba, 0x8c,
+    0xc4, 0xdb, 0xed, 0xc4, 0x4e, 0x8b, 0x8f, 0x84, 0x33, 0x64, 0xf8, 0x57,
+    0x12, 0xd7, 0x08, 0x7e, 0x90, 0x66, 0xdf, 0x91, 0x50, 0x23, 0xf2, 0x73,
+    0xc0, 0x6b, 0xb1, 0x15, 0xdd, 0x64, 0xd7, 0xc9, 0x75, 0x17, 0x73, 0x72,
+    0xda, 0x33, 0xc4, 0x6f, 0xa5, 0x47, 0xa1, 0xcc, 0xd1, 0xc6, 0x62, 0xe5,
+    0xca, 0xab, 0x5f, 0x2a, 0x8f, 0x6b, 0xcc, 0x02, 0x21, 0x00, 0xb0, 0xc7,
+    0x68, 0x70, 0x27, 0x43, 0xbc, 0x51, 0x24, 0x29, 0x93, 0xa9, 0x71, 0xa5,
+    0x28, 0x89, 0x79, 0x54, 0x44, 0xf7, 0xc6, 0x45, 0x22, 0x03, 0xd0, 0xce,
+    0x84, 0xfe, 0x61, 0x17, 0xd4, 0x6e,
+};
+
 static const uint8_t kMsg[] = {1, 2, 3, 4};
 
 static const uint8_t kSignature[] = {
@@ -509,6 +584,13 @@
     return 1;
   }
 
+  if (!Testd2i_AutoPrivateKey(kExampleDSAKeyDER, sizeof(kExampleDSAKeyDER),
+                              EVP_PKEY_DSA)) {
+    fprintf(stderr, "d2i_AutoPrivateKey(kExampleDSAKeyDER) failed\n");
+    BIO_print_errors_fp(stderr);
+    return 1;
+  }
+
   if (!TestEVP_PKCS82PKEY()) {
     fprintf(stderr, "TestEVP_PKCS82PKEY failed\n");
     BIO_print_errors_fp(stderr);