Reland "Cut down /crypto and switch what is left of it to boringssl".

crypto/signature_verifier.h

Index: crypto/signature_verifier.h
diff --git a/crypto/signature_verifier.h b/crypto/signature_verifier.h
deleted file mode 100644
index fbf87d4cc64d84d21c58816d1ac5731f1d84efe7..0000000000000000000000000000000000000000
--- a/crypto/signature_verifier.h
+++ /dev/null
@@ -1,145 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CRYPTO_SIGNATURE_VERIFIER_H_
-#define CRYPTO_SIGNATURE_VERIFIER_H_
-
-#include <vector>
-
-#include "build/build_config.h"
-#include "base/basictypes.h"
-#include "crypto/crypto_export.h"
-
-#if defined(USE_OPENSSL)
-typedef struct env_md_st EVP_MD;
-typedef struct evp_pkey_ctx_st EVP_PKEY_CTX;
-#else
-typedef struct HASHContextStr HASHContext;
-typedef struct SECKEYPublicKeyStr SECKEYPublicKey;
-typedef struct VFYContextStr VFYContext;
-#endif
-
-namespace crypto {
-
-// The SignatureVerifier class verifies a signature using a bare public key
-// (as opposed to a certificate).
-class CRYPTO_EXPORT SignatureVerifier {
- public:
-  // The set of supported hash functions. Extend as required.
-  enum HashAlgorithm {
-    SHA1,
-    SHA256,
-  };
-
-  SignatureVerifier();
-  ~SignatureVerifier();
-
-  // Streaming interface:
-
-  // Initiates a signature verification operation.  This should be followed
-  // by one or more VerifyUpdate calls and a VerifyFinal call.
-  // NOTE: for RSA-PSS signatures, use VerifyInitRSAPSS instead.
-  //
-  // The signature algorithm is specified as a DER encoded ASN.1
-  // AlgorithmIdentifier structure:
-  //   AlgorithmIdentifier  ::=  SEQUENCE  {
-  //       algorithm               OBJECT IDENTIFIER,
-  //       parameters              ANY DEFINED BY algorithm OPTIONAL  }
-  //
-  // The signature is encoded according to the signature algorithm, but it
-  // must not be further encoded in an ASN.1 BIT STRING.
-  // Note: An RSA signature is actually a big integer.  It must be in
-  // big-endian byte order.
-  //
-  // The public key is specified as a DER encoded ASN.1 SubjectPublicKeyInfo
-  // structure, which contains not only the public key but also its type
-  // (algorithm):
-  //   SubjectPublicKeyInfo  ::=  SEQUENCE  {
-  //       algorithm            AlgorithmIdentifier,
-  //       subjectPublicKey     BIT STRING  }
-  bool VerifyInit(const uint8* signature_algorithm,
-                  int signature_algorithm_len,
-                  const uint8* signature,
-                  int signature_len,
-                  const uint8* public_key_info,
-                  int public_key_info_len);
-
-  // Initiates a RSA-PSS signature verification operation.  This should be
-  // followed by one or more VerifyUpdate calls and a VerifyFinal call.
-  //
-  // The RSA-PSS signature algorithm parameters are specified with the
-  // |hash_alg|, |mask_hash_alg|, and |salt_len| arguments.
-  //
-  // An RSA-PSS signature is a nonnegative integer encoded as a byte string
-  // (of the same length as the RSA modulus) in big-endian byte order. It
-  // must not be further encoded in an ASN.1 BIT STRING.
-  //
-  // The public key is specified as a DER encoded ASN.1 SubjectPublicKeyInfo
-  // structure, which contains not only the public key but also its type
-  // (algorithm):
-  //   SubjectPublicKeyInfo  ::=  SEQUENCE  {
-  //       algorithm            AlgorithmIdentifier,
-  //       subjectPublicKey     BIT STRING  }
-  bool VerifyInitRSAPSS(HashAlgorithm hash_alg,
-                        HashAlgorithm mask_hash_alg,
-                        int salt_len,
-                        const uint8* signature,
-                        int signature_len,
-                        const uint8* public_key_info,
-                        int public_key_info_len);
-
-  // Feeds a piece of the data to the signature verifier.
-  void VerifyUpdate(const uint8* data_part, int data_part_len);
-
-  // Concludes a signature verification operation.  Returns true if the
-  // signature is valid.  Returns false if the signature is invalid or an
-  // error occurred.
-  bool VerifyFinal();
-
-  // Note: we can provide a one-shot interface if there is interest:
-  //   bool Verify(const uint8* data,
-  //               int data_len,
-  //               const uint8* signature_algorithm,
-  //               int signature_algorithm_len,
-  //               const uint8* signature,
-  //               int signature_len,
-  //               const uint8* public_key_info,
-  //               int public_key_info_len);
-
- private:
-#if defined(USE_OPENSSL)
-  bool CommonInit(const EVP_MD* digest,
-                  const uint8* signature,
-                  int signature_len,
-                  const uint8* public_key_info,
-                  int public_key_info_len,
-                  EVP_PKEY_CTX** pkey_ctx);
-#else
-  static SECKEYPublicKey* DecodePublicKeyInfo(const uint8* public_key_info,
-                                              int public_key_info_len);
-#endif
-
-  void Reset();
-
-  std::vector<uint8> signature_;
-
-#if defined(USE_OPENSSL)
-  struct VerifyContext;
-  VerifyContext* verify_context_;
-#else
-  // Used for all signature types except RSA-PSS.
-  VFYContext* vfy_context_;
-
-  // Used for RSA-PSS signatures.
-  HashAlgorithm hash_alg_;
-  HashAlgorithm mask_hash_alg_;
-  unsigned int salt_len_;
-  SECKEYPublicKey* public_key_;
-  HASHContext* hash_context_;
-#endif
-};
-
-}  // namespace crypto
-
-#endif  // CRYPTO_SIGNATURE_VERIFIER_H_