Difference between revisions of "hash"
(New page: The package '''hash''' contains implementations for crc, md5, NTLM (1?) and, under Linux, crypt. Crypt might be better used from pkg "user". == Unit md5 == This unit implements the MD5 ...) |
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| − | The package '''hash''' contains implementations for | + | {{hash}} |
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| + | The package '''hash''' contains implementations for CRC, MD5, NTLM (1?) and, under Linux, crypt. Crypt might be better used from pkg "user". | ||
== Unit md5 == | == Unit md5 == | ||
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The test program md5test calculates the hash value for some reference string. The reference output is provided for comparison. | The test program md5test calculates the hash value for some reference string. The reference output is provided for comparison. | ||
| − | Go to | + | A simple way to calculate the MD5 of a given string is to use MD5String followed by MD5Print, like this: |
| + | |||
| + | <syntaxhighlight lang=pascal> | ||
| + | uses md5; | ||
| + | |||
| + | var | ||
| + | Password, PasswordHash: string; | ||
| + | begin | ||
| + | PasswordHash := MD5Print(MD5String(Password)); | ||
| + | </syntaxhighlight> | ||
| + | |||
| + | Similarly, to generate the MD5 hash of a file one can use: | ||
| + | |||
| + | <syntaxhighlight lang=pascal> | ||
| + | uses md5; | ||
| + | |||
| + | var | ||
| + | PathToFile, FileHash: string; | ||
| + | begin | ||
| + | FileHash := MD5Print(MD5File(PathToFile)); | ||
| + | </syntaxhighlight> | ||
| + | |||
| + | == Hash units == | ||
| + | |||
| + | The following hash units are available in FPC: | ||
| + | |||
| + | * Implements a NTLM version 1.0, password hash algorithm-unit : ntlm.pas | ||
| + | * Implements a MD2 digest algorithm (RFC 1319)-unit: md5.pp | ||
| + | * Implements a MD4 digest algorithm (RFC 1320)-unit: md5.pp | ||
| + | * Implements a MD5 digest algorithm (RFC 1321)-unit: md5.pp | ||
| + | * Implements CRC algorithm-unit: crc.pas | ||
| + | * Implements SHA1 digst algorithm-unit: sha1.pp | ||
| + | * Hash-based supporting HMAC-MD5 and HMAC-SHA-1 - unit: hmac.pp (FPC trunk) | ||
| + | |||
| + | == See also == | ||
| + | * [[HMAC-MD5]] | ||
| + | * [[HMAC-SHA1]] | ||
| + | |||
| + | Go back to [[Package_List|Packages List]] | ||
Latest revision as of 13:23, 16 February 2020
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The package hash contains implementations for CRC, MD5, NTLM (1?) and, under Linux, crypt. Crypt might be better used from pkg "user".
Unit md5
This unit implements the MD5 digest algorithm according to the specifications in RFC 1321. There are routines to calculate hashes from some buffer, or a hash from an entire file.
The test program md5test calculates the hash value for some reference string. The reference output is provided for comparison.
A simple way to calculate the MD5 of a given string is to use MD5String followed by MD5Print, like this:
uses md5;
var
Password, PasswordHash: string;
begin
PasswordHash := MD5Print(MD5String(Password));
Similarly, to generate the MD5 hash of a file one can use:
uses md5;
var
PathToFile, FileHash: string;
begin
FileHash := MD5Print(MD5File(PathToFile));
Hash units
The following hash units are available in FPC:
- Implements a NTLM version 1.0, password hash algorithm-unit : ntlm.pas
- Implements a MD2 digest algorithm (RFC 1319)-unit: md5.pp
- Implements a MD4 digest algorithm (RFC 1320)-unit: md5.pp
- Implements a MD5 digest algorithm (RFC 1321)-unit: md5.pp
- Implements CRC algorithm-unit: crc.pas
- Implements SHA1 digst algorithm-unit: sha1.pp
- Hash-based supporting HMAC-MD5 and HMAC-SHA-1 - unit: hmac.pp (FPC trunk)
See also
Go back to Packages List
