| /* |
| * Copyright (C) 2013 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef WebCryptoAlgorithmParams_h |
| #define WebCryptoAlgorithmParams_h |
| |
| #include "WebCommon.h" |
| #include "WebCryptoAlgorithm.h" |
| #include "WebVector.h" |
| |
| namespace blink { |
| |
| // NOTE: For documentation on the meaning of each of the parameters see the |
| // Web crypto spec: |
| // |
| // http://www.w3.org/TR/WebCryptoAPI |
| // |
| // For the most part, the parameters in the spec have the same name, |
| // except that in the blink code: |
| // |
| // - Structure names are prefixed by "WebCrypto" |
| // - Optional fields are prefixed by "optional" |
| // - Data length properties are suffixed by either "Bits" or "Bytes" |
| |
| class WebCryptoAlgorithmParams { |
| public: |
| explicit WebCryptoAlgorithmParams(WebCryptoAlgorithmParamsType type) |
| : m_type(type) |
| { |
| } |
| |
| virtual ~WebCryptoAlgorithmParams() { } |
| |
| WebCryptoAlgorithmParamsType type() const { return m_type; } |
| |
| private: |
| const WebCryptoAlgorithmParamsType m_type; |
| }; |
| |
| class WebCryptoAesCbcParams : public WebCryptoAlgorithmParams { |
| public: |
| WebCryptoAesCbcParams(const unsigned char* iv, unsigned ivSize) |
| : WebCryptoAlgorithmParams(WebCryptoAlgorithmParamsTypeAesCbcParams) |
| , m_iv(iv, ivSize) |
| { |
| } |
| |
| const WebVector<unsigned char>& iv() const { return m_iv; } |
| |
| private: |
| const WebVector<unsigned char> m_iv; |
| }; |
| |
| class WebCryptoAesCtrParams : public WebCryptoAlgorithmParams { |
| public: |
| WebCryptoAesCtrParams(unsigned char lengthBits, const unsigned char* counter, unsigned counterSize) |
| : WebCryptoAlgorithmParams(WebCryptoAlgorithmParamsTypeAesCtrParams) |
| , m_counter(counter, counterSize) |
| , m_lengthBits(lengthBits) |
| { |
| } |
| |
| const WebVector<unsigned char>& counter() const { return m_counter; } |
| unsigned char lengthBits() const { return m_lengthBits; } |
| |
| private: |
| const WebVector<unsigned char> m_counter; |
| const unsigned char m_lengthBits; |
| }; |
| |
| class WebCryptoAesKeyGenParams : public WebCryptoAlgorithmParams { |
| public: |
| explicit WebCryptoAesKeyGenParams(unsigned short lengthBits) |
| : WebCryptoAlgorithmParams(WebCryptoAlgorithmParamsTypeAesKeyGenParams) |
| , m_lengthBits(lengthBits) |
| { |
| } |
| |
| // FIXME: Delete once no longer referenced by chromium. |
| unsigned short length() const { return m_lengthBits; } |
| |
| unsigned short lengthBits() const { return m_lengthBits; } |
| |
| private: |
| const unsigned short m_lengthBits; |
| }; |
| |
| class WebCryptoHmacParams : public WebCryptoAlgorithmParams { |
| public: |
| explicit WebCryptoHmacParams(const WebCryptoAlgorithm& hash) |
| : WebCryptoAlgorithmParams(WebCryptoAlgorithmParamsTypeHmacParams) |
| , m_hash(hash) |
| { |
| BLINK_ASSERT(!hash.isNull()); |
| } |
| |
| const WebCryptoAlgorithm& hash() const { return m_hash; } |
| |
| private: |
| const WebCryptoAlgorithm m_hash; |
| }; |
| |
| class WebCryptoHmacKeyParams : public WebCryptoAlgorithmParams { |
| public: |
| WebCryptoHmacKeyParams(const WebCryptoAlgorithm& hash, bool hasLengthBytes, unsigned lengthBytes) |
| : WebCryptoAlgorithmParams(WebCryptoAlgorithmParamsTypeHmacKeyParams) |
| , m_hash(hash) |
| , m_hasLengthBytes(hasLengthBytes) |
| , m_optionalLengthBytes(lengthBytes) |
| { |
| BLINK_ASSERT(!hash.isNull()); |
| BLINK_ASSERT(hasLengthBytes || !lengthBytes); |
| } |
| |
| const WebCryptoAlgorithm& hash() const { return m_hash; } |
| |
| bool hasLengthBytes() const { return m_hasLengthBytes; } |
| |
| // FIXME: Delete once no longer referenced by chromium. |
| bool getLength(unsigned& length) const |
| { |
| if (!m_hasLengthBytes) |
| return false; |
| length = m_optionalLengthBytes; |
| return true; |
| } |
| |
| unsigned optionalLengthBytes() const { return m_optionalLengthBytes; } |
| |
| private: |
| const WebCryptoAlgorithm m_hash; |
| const bool m_hasLengthBytes; |
| const unsigned m_optionalLengthBytes; |
| }; |
| |
| class WebCryptoRsaSsaParams : public WebCryptoAlgorithmParams { |
| public: |
| explicit WebCryptoRsaSsaParams(const WebCryptoAlgorithm& hash) |
| : WebCryptoAlgorithmParams(WebCryptoAlgorithmParamsTypeRsaSsaParams) |
| , m_hash(hash) |
| { |
| BLINK_ASSERT(!hash.isNull()); |
| } |
| |
| const WebCryptoAlgorithm& hash() const { return m_hash; } |
| |
| private: |
| const WebCryptoAlgorithm m_hash; |
| }; |
| |
| class WebCryptoRsaKeyGenParams : public WebCryptoAlgorithmParams { |
| public: |
| WebCryptoRsaKeyGenParams(unsigned modulusLengthBits, const unsigned char* publicExponent, unsigned publicExponentSize) |
| : WebCryptoAlgorithmParams(WebCryptoAlgorithmParamsTypeRsaKeyGenParams) |
| , m_modulusLengthBits(modulusLengthBits) |
| , m_publicExponent(publicExponent, publicExponentSize) |
| { |
| } |
| |
| // FIXME: Delete once no longer referenced by chromium. |
| unsigned modulusLength() const { return m_modulusLengthBits; } |
| |
| unsigned modulusLengthBits() const { return m_modulusLengthBits; } |
| const WebVector<unsigned char>& publicExponent() const { return m_publicExponent; } |
| |
| private: |
| const unsigned m_modulusLengthBits; |
| const WebVector<unsigned char> m_publicExponent; |
| }; |
| |
| class WebCryptoAesGcmParams : public WebCryptoAlgorithmParams { |
| public: |
| WebCryptoAesGcmParams(const unsigned char* iv, unsigned ivSize, bool hasAdditionalData, const unsigned char* additionalData, unsigned additionalDataSize, bool hasTagLengthBits, unsigned char tagLengthBits) |
| : WebCryptoAlgorithmParams(WebCryptoAlgorithmParamsTypeAesGcmParams) |
| , m_iv(iv, ivSize) |
| , m_hasAdditionalData(hasAdditionalData) |
| , m_optionalAdditionalData(additionalData, additionalDataSize) |
| , m_hasTagLengthBits(hasTagLengthBits) |
| , m_optionalTagLengthBits(tagLengthBits) |
| { |
| BLINK_ASSERT(hasAdditionalData || !additionalDataSize); |
| BLINK_ASSERT(hasTagLengthBits || !tagLengthBits); |
| } |
| |
| const WebVector<unsigned char>& iv() const { return m_iv; } |
| |
| bool hasAdditionalData() const { return m_hasAdditionalData; } |
| const WebVector<unsigned char>& optionalAdditionalData() const { return m_optionalAdditionalData; } |
| |
| bool hasTagLengthBits() const { return m_hasTagLengthBits; } |
| unsigned optionalTagLengthBits() const { return m_optionalTagLengthBits; } |
| |
| private: |
| const WebVector<unsigned char> m_iv; |
| const bool m_hasAdditionalData; |
| const WebVector<unsigned char> m_optionalAdditionalData; |
| const bool m_hasTagLengthBits; |
| const unsigned char m_optionalTagLengthBits; |
| }; |
| |
| class WebCryptoRsaOaepParams : public WebCryptoAlgorithmParams { |
| public: |
| WebCryptoRsaOaepParams(const WebCryptoAlgorithm& hash, bool hasLabel, const unsigned char* label, unsigned labelSize) |
| : WebCryptoAlgorithmParams(WebCryptoAlgorithmParamsTypeRsaOaepParams) |
| , m_hash(hash) |
| , m_hasLabel(hasLabel) |
| , m_optionalLabel(label, labelSize) |
| { |
| BLINK_ASSERT(!hash.isNull()); |
| BLINK_ASSERT(hasLabel || !labelSize); |
| } |
| |
| const WebCryptoAlgorithm& hash() const { return m_hash; } |
| |
| bool hasLabel() const { return m_hasLabel; } |
| const WebVector<unsigned char>& optionalLabel() const { return m_optionalLabel; } |
| |
| private: |
| const WebCryptoAlgorithm m_hash; |
| const bool m_hasLabel; |
| const WebVector<unsigned char> m_optionalLabel; |
| }; |
| |
| } // namespace blink |
| |
| #endif |