1 files changed, 76 insertions, 0 deletions

diff --git a/src/mbedTLS++/CryptoKey.h b/src/mbedTLS++/CryptoKey.h
new file mode 100644
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+++ b/src/mbedTLS++/CryptoKey.h
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+
+// CryptoKey.h
+
+// Declares the cCryptoKey class representing a RSA public key in mbedTLS
+
+
+
+
+
+#pragma once
+
+#include "CtrDrbgContext.h"
+#include "mbedtls/pk.h"
+
+
+
+
+
+class cCryptoKey
+{
+	friend class cSslConfig;
+
+public:
+	/** Constructs an empty key instance. Before use, it needs to be filled by ParsePublic() or ParsePrivate() */
+	cCryptoKey(void);
+
+	/** Constructs the public key out of the DER- or PEM-encoded pubkey data */
+	cCryptoKey(const AString & a_PublicKeyData);
+
+	/** Constructs the private key out of the DER- or PEM-encoded privkey data, with the specified password.
+	If a_Password is empty, no password is assumed. */
+	cCryptoKey(const AString & a_PrivateKeyData, const AString & a_Password);
+
+	~cCryptoKey();
+
+	/** 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);
+
+	/** Parses the specified data into a public key representation.
+	The key can be DER- or PEM-encoded.
+	Returns 0 on success, mbedTLS error code on failure. */
+	int ParsePublic(const void * a_Data, size_t a_NumBytes);
+
+	/** Parses the specified data into a private key representation.
+	If a_Password is empty, no password is assumed.
+	The key can be DER- or PEM-encoded.
+	Returns 0 on success, mbedTLS error code on failure. */
+	int ParsePrivate(const void * a_Data, size_t a_NumBytes, const AString & a_Password);
+
+	/** Returns true if the contained key is valid. */
+	bool IsValid(void) const;
+
+protected:
+	/** The mbedTLS representation of the key data */
+	mbedtls_pk_context m_Pk;
+
+	/** The random generator used in encryption and decryption */
+	cCtrDrbgContext m_CtrDrbg;
+
+
+	/** Returns the internal context ptr. Only use in mbedTLS API calls. */
+	mbedtls_pk_context * GetInternal(void) { return &m_Pk; }
+} ;
+
+typedef std::shared_ptr<cCryptoKey> cCryptoKeyPtr;
+
+
+
+