diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/Crypto.cpp | 78 | ||||
| -rw-r--r-- | src/Crypto.h | 31 | ||||
| -rw-r--r-- | src/PolarSSL++/CMakeLists.txt | 2 | ||||
| -rw-r--r-- | src/PolarSSL++/CtrDrbgContext.h | 1 | ||||
| -rw-r--r-- | src/PolarSSL++/PublicKey.cpp | 73 | ||||
| -rw-r--r-- | src/PolarSSL++/PublicKey.h | 48 |
6 files changed, 124 insertions, 109 deletions
diff --git a/src/Crypto.cpp b/src/Crypto.cpp index dd8787293..370b498bf 100644 --- a/src/Crypto.cpp +++ b/src/Crypto.cpp @@ -53,84 +53,6 @@ public: /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// -// cRSAPrivateKey: - -/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// -// cPublicKey: - -cPublicKey::cPublicKey(const AString & a_PublicKeyDER) -{ - pk_init(&m_Pk); - if (pk_parse_public_key(&m_Pk, (const Byte *)a_PublicKeyDER.data(), a_PublicKeyDER.size()) != 0) - { - ASSERT(!"Cannot parse PubKey"); - return; - } - InitRnd(); -} - - - - - -cPublicKey::~cPublicKey() -{ - pk_free(&m_Pk); -} - - - - - -int cPublicKey::Decrypt(const Byte * a_EncryptedData, size_t a_EncryptedLength, Byte * a_DecryptedData, size_t a_DecryptedMaxLength) -{ - size_t DecryptedLen = a_DecryptedMaxLength; - int res = pk_decrypt(&m_Pk, - a_EncryptedData, a_EncryptedLength, - a_DecryptedData, &DecryptedLen, a_DecryptedMaxLength, - ctr_drbg_random, &m_Ctr_drbg - ); - if (res != 0) - { - return res; - } - return (int)DecryptedLen; -} - - - - - -int cPublicKey::Encrypt(const Byte * a_PlainData, size_t a_PlainLength, Byte * a_EncryptedData, size_t a_EncryptedMaxLength) -{ - size_t EncryptedLength = a_EncryptedMaxLength; - int res = pk_encrypt(&m_Pk, - a_PlainData, a_PlainLength, a_EncryptedData, &EncryptedLength, a_EncryptedMaxLength, - ctr_drbg_random, &m_Ctr_drbg - ); - if (res != 0) - { - return res; - } - return (int)EncryptedLength; -} - - - - - -void cPublicKey::InitRnd(void) -{ - entropy_init(&m_Entropy); - const unsigned char pers[] = "rsa_genkey"; - ctr_drbg_init(&m_Ctr_drbg, entropy_func, &m_Entropy, pers, sizeof(pers) - 1); -} - - - - - -/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// // cAESCFBDecryptor: cAESCFBDecryptor::cAESCFBDecryptor(void) : diff --git a/src/Crypto.h b/src/Crypto.h index 24f246897..993b21afb 100644 --- a/src/Crypto.h +++ b/src/Crypto.h @@ -14,37 +14,6 @@ #include "polarssl/entropy.h" #include "polarssl/ctr_drbg.h" #include "polarssl/sha1.h" -#include "polarssl/pk.h" - - - - - -class cPublicKey -{ -public: - cPublicKey(const AString & a_PublicKeyDER); - ~cPublicKey(); - - /** Decrypts the data using the stored public key - Both a_EncryptedData and a_DecryptedData must be at least <KeySizeBytes> bytes large. - Returns the number of bytes decrypted, or negative number for error. */ - int Decrypt(const Byte * a_EncryptedData, size_t a_EncryptedLength, Byte * a_DecryptedData, size_t a_DecryptedMaxLength); - - /** Encrypts the data using the stored public key - Both a_EncryptedData and a_DecryptedData must be at least <KeySizeBytes> bytes large. - Returns the number of bytes decrypted, or negative number for error. */ - int Encrypt(const Byte * a_PlainData, size_t a_PlainLength, Byte * a_EncryptedData, size_t a_EncryptedMaxLength); - -protected: - pk_context m_Pk; - entropy_context m_Entropy; - ctr_drbg_context m_Ctr_drbg; - - /** Initializes the m_Entropy and m_Ctr_drbg contexts - Common part of this object's construction, called from all constructors. */ - void InitRnd(void); -} ; diff --git a/src/PolarSSL++/CMakeLists.txt b/src/PolarSSL++/CMakeLists.txt index ebdd52de5..bf7720abc 100644 --- a/src/PolarSSL++/CMakeLists.txt +++ b/src/PolarSSL++/CMakeLists.txt @@ -10,6 +10,7 @@ set(SOURCES "CallbackSslContext.cpp" "CtrDrbgContext.cpp" "EntropyContext.cpp" + "PublicKey.cpp" "RsaPrivateKey.cpp" "SslContext.cpp" "X509Cert.cpp" @@ -21,6 +22,7 @@ set(HEADERS "CallbackSslContext.h" "CtrDrbgContext.h" "EntropyContext.h" + "PublicKey.h" "RsaPrivateKey.h" "SslContext.h" "X509Cert.h" diff --git a/src/PolarSSL++/CtrDrbgContext.h b/src/PolarSSL++/CtrDrbgContext.h index 817222a53..65e9a2374 100644 --- a/src/PolarSSL++/CtrDrbgContext.h +++ b/src/PolarSSL++/CtrDrbgContext.h @@ -26,6 +26,7 @@ class cCtrDrbgContext { friend class cSslContext; friend class cRsaPrivateKey; + friend class cPublicKey; public: /** Constructs the context with a new entropy context. */ diff --git a/src/PolarSSL++/PublicKey.cpp b/src/PolarSSL++/PublicKey.cpp new file mode 100644 index 000000000..49794a0c8 --- /dev/null +++ b/src/PolarSSL++/PublicKey.cpp @@ -0,0 +1,73 @@ + +// PublicKey.cpp + +// Implements the cPublicKey class representing a RSA public key in PolarSSL + +#include "Globals.h" +#include "PublicKey.h" + + + + + +cPublicKey::cPublicKey(const AString & a_PublicKeyDER) +{ + pk_init(&m_Pk); + if (pk_parse_public_key(&m_Pk, (const Byte *)a_PublicKeyDER.data(), a_PublicKeyDER.size()) != 0) + { + ASSERT(!"Cannot parse PubKey"); + return; + } + m_CtrDrbg.Initialize("rsa_pubkey", 10); +} + + + + + +cPublicKey::~cPublicKey() +{ + pk_free(&m_Pk); +} + + + + + +int cPublicKey::Decrypt(const Byte * a_EncryptedData, size_t a_EncryptedLength, Byte * a_DecryptedData, size_t a_DecryptedMaxLength) +{ + size_t DecryptedLen = a_DecryptedMaxLength; + int res = pk_decrypt(&m_Pk, + a_EncryptedData, a_EncryptedLength, + a_DecryptedData, &DecryptedLen, a_DecryptedMaxLength, + ctr_drbg_random, m_CtrDrbg.GetInternal() + ); + if (res != 0) + { + return res; + } + return (int)DecryptedLen; +} + + + + + +int cPublicKey::Encrypt(const Byte * a_PlainData, size_t a_PlainLength, Byte * a_EncryptedData, size_t a_EncryptedMaxLength) +{ + size_t EncryptedLength = a_EncryptedMaxLength; + int res = pk_encrypt(&m_Pk, + a_PlainData, a_PlainLength, a_EncryptedData, &EncryptedLength, a_EncryptedMaxLength, + ctr_drbg_random, m_CtrDrbg.GetInternal() + ); + if (res != 0) + { + return res; + } + return (int)EncryptedLength; +} + + + + + diff --git a/src/PolarSSL++/PublicKey.h b/src/PolarSSL++/PublicKey.h new file mode 100644 index 000000000..5a0a57147 --- /dev/null +++ b/src/PolarSSL++/PublicKey.h @@ -0,0 +1,48 @@ + +// PublicKey.h + +// Declares the cPublicKey class representing a RSA public key in PolarSSL + + + + + +#pragma once + +#include "CtrDrbgContext.h" +#include "polarssl/pk.h" + + + + + +class cPublicKey +{ +public: + /** Constructs the public key out of the DER-encoded pubkey data */ + cPublicKey(const AString & a_PublicKeyDER); + + ~cPublicKey(); + + /** Decrypts the data using the stored public key + Both a_EncryptedData and a_DecryptedData must be at least <KeySizeBytes> bytes large. + Returns the number of bytes decrypted, or negative number for error. */ + int Decrypt(const Byte * a_EncryptedData, size_t a_EncryptedLength, Byte * a_DecryptedData, size_t a_DecryptedMaxLength); + + /** Encrypts the data using the stored public key + Both a_EncryptedData and a_DecryptedData must be at least <KeySizeBytes> bytes large. + Returns the number of bytes decrypted, or negative number for error. */ + int Encrypt(const Byte * a_PlainData, size_t a_PlainLength, Byte * a_EncryptedData, size_t a_EncryptedMaxLength); + +protected: + /** The public key PolarSSL representation */ + pk_context m_Pk; + + /** The random generator used in encryption and decryption */ + cCtrDrbgContext m_CtrDrbg; +} ; + + + + + |