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- Windows Windows XP or newer (2.1.0) Mac MacOS 10.7+ (2.1.0) Linux Debian 32 bit (2.0.0) Debian 64 bit (2.1.0) RPM 32 bit (2.0.0) RPM 64 bit (2.1.0) TAR.GZ 32 bit (2.0.0) TAR.GZ 64 bit (2.0.0) Andro.
Apr 20, 2018 ProEncryptor is a professional encryption software, support AES256 and AES512 algorithm, according to the need of higher security, we specially made optimization. Version 1.7.7: Bug fixes. OS X 10.8 or later, 64-bit processor. Screenshots Download Now.
-->Important changes to support Secure/Multipurpose Internet Mail Extensions (S/MIME) email interoperability have been made to CryptoAPI that affect the handling of enveloped messages. For more information, see the Remarks section of CryptMsgOpenToEncode.
Syntax
Parameters
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hKey
A handle to the encryption key. An application obtains this handle by using either theCryptGenKey or theCryptImportKey function.
The key specifies the encryption algorithm used.
hHash
A handle to a hash object. If data is to be hashed and encrypted simultaneously, a handle to a hash object can be passed in the hHash parameter. The hash value is updated with the plaintext passed in. This option is useful when generating signed and encrypted text.
Before calling CryptEncrypt, the application must obtain a handle to the hash object by calling theCryptCreateHash function. After the encryption is complete, the hash value can be obtained by using theCryptGetHashParam function, or the hash can be signed by using theCryptSignHash function.
If no hash is to be done, this parameter must be NULL.
Final
A Boolean value that specifies whether this is the last section in a series being encrypted. Final is set to TRUE for the last or only block and to FALSE if there are more blocks to be encrypted. For more information, see Remarks.
dwFlags
The following dwFlags value is defined but reserved for future use.
| Value | Meaning |
|---|---|
| Use Optimal Asymmetric Encryption Padding (OAEP) (PKCS #1 version 2). This flag is only supported by the Microsoft Enhanced Cryptographic Provider with RSA encryption/decryption. |
pbData
A pointer to a buffer that contains the plaintext to be encrypted. The plaintext in this buffer is overwritten with the ciphertext created by this function.
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The pdwDataLen parameter points to a variable that contains the length, in bytes, of the plaintext. The dwBufLen parameter contains the total size, in bytes, of this buffer.
If this parameter contains NULL, this function will calculate the required size for the ciphertext and place that in the value pointed to by the pdwDataLen parameter.
pdwDataLen
A pointer to a DWORD value that , on entry, contains the length, in bytes, of the plaintext in the pbData buffer. On exit, this DWORD contains the length, in bytes, of the ciphertext written to the pbData buffer.
If the buffer allocated for pbData is not large enough to hold the encrypted data,GetLastError returns ERROR_MORE_DATA and stores the required buffer size, in bytes, in the DWORD value pointed to by pdwDataLen.
If pbData is NULL, no error is returned, and the function stores the size of the encrypted data, in bytes, in the DWORD value pointed to by pdwDataLen. This allows an application to determine the correct buffer size.
When a block cipher is used, this data length must be a multiple of the block size unless this is the final section of data to be encrypted and the Final parameter is TRUE.
dwBufLen
Specifies the total size, in bytes, of the input pbData buffer.
Note that, depending on the algorithm used, the encrypted text can be larger than the original plaintext. In this case, the pbData buffer needs to be large enough to contain the encrypted text and any padding.
As a rule, if a stream cipher is used, the ciphertext is the same size as the plaintext. If a block cipher is used, the ciphertext is up to a block length larger than the plaintext.
Return value
If the function succeeds, the function returns nonzero (TRUE).
If the function fails, it returns zero (FALSE). For extended error information, callGetLastError.
The error codes prefaced by NTE are generated by the particular CSP being used. Some possible error codes follow.
| Value | Description |
|---|---|
| One of the parameters specifies a handle that is not valid. |
| One of the parameters contains a value that is not valid. This is most often a pointer that is not valid. |
| The hKeysession key specifies an algorithm that this CSP does not support. |
| The data to be encrypted is not valid. For example, when a block cipher is used and the Final flag is FALSE, the value specified by pdwDataLen must be a multiple of the block size. |
| The dwFlags parameter is nonzero. |
| The hHash parameter contains a handle that is not valid. |
| An attempt was made to add data to a hash object that is already marked 'finished.' |
| The hKey parameter does not contain a valid handle to a key. |
| The size of the output buffer is too small to hold the generated ciphertext. |
| The CSP context that was specified when the key was created cannot be found. |
| The application attempted to encrypt the same data twice. |
| The function failed in some unexpected way. |
| The CSP ran out of memory during the operation. |
Remarks
If a large amount of data is to be encrypted, it can be done in sections by calling CryptEncrypt repeatedly. The Final parameter must be set to TRUE on the last call to CryptEncrypt, so that the encryption engine can properly finish the encryption process. The following extra actions are performed when Final is TRUE:
- If the key is a block cipher key, the data is padded to a multiple of the block size of the cipher. If the data length equals the block size of the cipher, one additional block of padding is appended to the data. To find the block size of a cipher, use CryptGetKeyParam to get the KP_BLOCKLEN value of the key.
- If the cipher is operating in a chaining mode, the next CryptEncrypt operation resets the cipher's feedback register to the KP_IV value of the key.
- If the cipher is a stream cipher, the next CryptEncrypt resets the cipher to its initial state.
There is no way to set the cipher's feedback register to the KP_IV value of the key without setting the Final parameter to TRUE. If this is necessary, as in the case where you do not want to add an additional padding block or change the size of each block, you can simulate this by creating a duplicate of the original key by using the CryptDuplicateKey function, and passing the duplicate key to the CryptEncrypt function. This causes the KP_IV of the original key to be placed in the duplicate key. After you create or import the original key, you cannot use the original key for encryption because the feedback register of the key will be changed. The following pseudocode shows how this can be done.
The Microsoft Enhanced Cryptographic Provider supports direct encryption with RSApublic keys and decryption with RSA private keys. The encryption uses PKCS #1 padding. On decryption, this padding is verified. The length of plaintext data that can be encrypted with a call to CryptEncrypt with an RSA key is the length of the key modulus minus eleven bytes. The eleven bytes is the chosen minimum for PKCS #1 padding. The ciphertext is returned in little-endian format.
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Examples
For examples that use this function, see Example C Program: Encrypting a File and Example C Program: Decrypting a File.
Requirements
| Minimum supported client | Windows XP [desktop apps only] |
| Minimum supported server | Windows Server 2003 [desktop apps only] |
| Target Platform | Windows |
| Header | wincrypt.h |
| Library | Advapi32.lib |
| DLL | Advapi32.dll |
See also
We offer the product as is, and do not claim any rights to the name TrueCrypt or TrueCrypt.org – this is not a fork but the distribution of the product under Section II of the TrueCrypt license.
| Operating System | Signature | Download |
|---|---|---|
| Windows (XP/Vista/7/8) | sig | TrueCrypt Setup 7.1a.exe |
| MacOS X | sig | TrueCrypt 7.1a Mac OS X.dmg |
| Linux x86 / gui | sig | truecrypt-7.1a-linux-x86.tar.gz |
| Linux 64bit / gui | sig | truecrypt-7.1a-linux-x64.tar.gz |
| Linux x86 / headless | sig | truecrypt-7.1a-linux-console-x86.tar.gz |
| Linux 64bit / headless | sig | truecrypt-7.1a-linux-console-x64.tar.gz |
| Language | Download |
|---|---|
| ar – Arabic – العربية | langpack-ar-0.1.0-for-truecrypt-7.1a.zip |
| be – Belarusian – беларуская мова | langpack-be-0.1.0-for-truecrypt-7.1a.zip |
| bg – Bulgarian – български език | langpack-bg-0.1.0-for-truecrypt-7.1a.zip |
| ca – Catalan, Valencian – Català, valencià | langpack-ca-0.1.0-for-truecrypt-7.1a.zip |
| cs – Czech – čeština, český jazyk | langpack-cs-1.0.0-for-truecrypt-7.1a.zip |
| da – Danish – Dansk | langpack-da-0.1.0-for-truecrypt-7.1a.zip |
| de – German – Deutsch | langpack-de-1.0.1-for-truecrypt-7.1a.zip |
| el – Greek – ελληνικά | langpack-el-0.1.0-for-truecrypt-7.1a.zip |
| es – Spanish, Castilian – Español, Castellano | langpack-es-1.0.0-for-truecrypt-7.1a.zip |
| et – Estonian – eesti, eesti keel | langpack-et-0.1.0-for-truecrypt-7.1a.zip |
| eu – Basque – Euskara, Euskera | langpack-eu-1.0.0-for-truecrypt-7.1a.zip |
| fa – Persian (Farsi) – فارسی | langpack-fa-0.1.0-for-truecrypt-7.1a.zip |
| fi – Finnish – suomi, suomen kieli | langpack-fi-0.1.0-for-truecrypt-7.1a.zip |
| fr – French – français, langue française | langpack-fr-0.2.0-for-truecrypt-7.1a.zip |
| hu – Hungarian – magyar | langpack-hu-0.1.0-for-truecrypt-7.1a.zip |
| id – Indonesian – Bahasa Indonesia | langpack-id-0.1.0-for-truecrypt-7.1a.zip |
| it – Italian – italiano | langpack-it-1.0.1-for-truecrypt-7.1a.zip |
| ja – Japanese – 日本語 (にほんご) | langpack-ja-1.0.0-for-truecrypt-7.1a.zip |
| ka – Georgian – ქართული | langpack-ka-0.1.0-for-truecrypt-7.1a.zip |
| ko – Korean – 한국어, 조선어 | langpack-ko-0.1.0-for-truecrypt-7.1a.zip |
| lv – Latvian – latviešu valoda | langpack-lv-0.1.0-for-truecrypt-7.1a.zip |
| my – Burmese – ဗမာစာ | langpack-my-1.0.0-for-truecrypt-7.1a.zip |
| nl – Dutch – Nederlands, Vlaams | langpack-nl-0.1.0-for-truecrypt-7.1a.zip |
| nn – Norwegian Nynorsk – Norsk nynorsk | langpack-nn-0.1.0-for-truecrypt-7.1a.zip |
| pl – Polish – język polski, polszczyzna | langpack-pl-0.1.0-for-truecrypt-7.1a.zip |
| pt-br – Portuguese – português | langpack-pt-br-0.1.0-for-truecrypt-7.1a.zip |
| ru – Russian – русский язык | langpack-ru-1.0.0-for-truecrypt-7.1a.zip |
| sk – Slovak – slovenčina, slovenský jazyk | langpack-sk-0.1.0-for-truecrypt-7.1a.zip |
| sl – Slovene – slovenski jezik, slovenščina | langpack-sl-0.1.0-for-truecrypt-7.1a.zip |
| sv – Swedish – Svenska | langpack-sv-1.0.0-for-truecrypt-7.1a.zip |
| tr – Turkish – Türkçe | langpack-tr-0.1.0-for-truecrypt-7.1a.zip |
| uk – Ukrainian – українська мова | langpack-uk-0.1.0-for-truecrypt-7.1a.zip |
| uz – Uzbek – O‘zbek, Ўзбек, أۇزبېك | langpack-uz-0.1.0-for-truecrypt-7.1a.zip |
| vi – Vietnamese – Tiếng Việt | langpack-vi-0.1.0-for-truecrypt-7.1a.zip |
| zh-cn – Chinese (China) – 中文 (Zhōngwén), 汉语, 漢語 | langpack-zh-cn-0.1.0-for-truecrypt-7.1a.zip |
| zh-hk – Chinese (Hong-Kong) – 中文 (Zhōngwén), 汉语, 漢語 | langpack-zh-hk-0.1.0-for-truecrypt-7.1a.zip |
| zh-tw – Chinese (Taiwan) – 中文 (Zhōngwén), 汉语, 漢語 | langpack-zh-tw-0.1.0-for-truecrypt-7.1a.zip |
1+7 Mobile
| Version | Signature | Download |
|---|---|---|
| 7.2 | sig | TrueCrypt 7.2 Source.zip |
| 7.2 | sig | TrueCrypt 7.2 Source.zip |
| 7.1a | sig | TrueCrypt 7.1a Source.zip |
| 7.1 | sig | TrueCrypt 7.1 Source.zip |
| 7.0a | sig | TrueCrypt 7.0a Source.zip |
| 7.0 | sig | TrueCrypt 7.0 Source.zip |
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