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How To use XP_CRYPT GUI
Introduction
What is XP_CRYPT
System requirements
Free version limitations
End user license agreement
Installing XP_CRYPT
Installation procedure
Activation
XP_CRYPT API
What's new
Encryption methods overview
Session
xp_crypt_set_var
xp_crypt_get_var
xp_crypt_close_session
xp_crypt_init_session
xp_crypt_set_option
Asymmetric keys
DSA
xp_dsa_free_key
xp_dsa_load_key
xp_dsa_save_key
xp_dsa_generate_couple
RSA
xp_rsa_generate_couple
xp_rsa_generate_pub_key
xp_rsa_load_key
xp_rsa_priv_dec
xp_rsa_pub_enc
xp_rsa_save_key
xp_rsa_free_key
Digital signatures
DSA
xp_dsa_verify
xp_dsa_sign
RSA
xp_rsa_sign
xp_rsa_verify
Hashing
xp_crypt
xp_md5
xp_sha1
Symmetric encryption
AES128
xp_aes128_decrypt
xp_aes128_encrypt
AES
xp_aes_decrypt
xp_aes_encrypt
DESX
xp_desx_decrypt
xp_desx_encrypt
RC4
xp_rc4_decrypt
xp_rc4_encrypt
Triple DES
xp_des3_encrypt
xp_des3_decrypt
Error codes
Tutorial
How to use GUI
Advanced technique (Old)
Table encryption (Old)
Troubleshooting
Troubleshooting overview

xp_crypt

Creates UNIX compatible DES hash. Equivalent to UNIX crypt(1) and perl crypt() function. Only first 8 chars from the source string are used. This is a more historical than practical hash.

Syntax

xp_crypt salt, clear_text, hash OUTPUT

Arguments

salt

VARCHAR.2 character salt used for hashing

clear_text

VARCHAR. Value which is to be hashed

hash

VARCHAR or VARBINARY. Variable to hold the result.

Permissions

Execute permissions default to the public role.

Return Code Values

0 - success, or Error code if failed.  hash IS NOT NULL (success) or IS NULL (failure) asymmetric 

Example
declare @encrypted_password varchar(16)
declare @salt varchar(2)
declare @clear_password varchar(16)
select @salt='ab'
select @clear_password='seeme?'
exec xp_crypt @salt,@clear_password,@encrypted_password OUTPUT
select @encrypted_password

The output should be:

----------------
abbprBi2naCss
(1 row(s) affected)

 
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