1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
// 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;
|
