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Ayuda / WLanguage / Funciones WLanguage / Funciones estándar / Funciones Hash
  • Notes
  • HashString and UNICODE
  • Availability of algorithms
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Calculates the Hash of a character string according to a specific algorithm. You have the ability to calculate:
  • a simple hash.
  • a hash with message authentication.
  • a hash obtained with a key derivation function that takes a salt as parameter (PBKDF2).
    Java Not available.
Reminder Hashing is used to produce a condensed summary of a file or character string. This summary is called Hash.
Caution: Result may contain characters that cannot be displayed. If you want to get a string with the hexadecimal representations of bytes (to use it in a REST or SOAP API, for example) you can use BufferToHexa with the NoGrouping constant on the result buffer.
Ejemplo
WindowsLinuxJava 
// Calculate the Hash of values for two edit controls
Hash1 is Buffer = HashString(HA_MD5_128, EDT_Edit1)
Hash2 is Buffer = HashString(HA_MD5_128, EDT_Edit2)
// Compare the two Hash 
IF Hash1 = Hash2 THEN Info("The two strings are identical.")
Sintaxis

Calculating a simple hash Ocultar los detalles

<Result> = HashString(<Type of algorithm> , <String>)
<Result>: Buffer
Result of <String> hashing with the <Type of algorithm> algorithm.
<Type of algorithm>: Integer constant
Indicates the type of algorithm used when hashing the <String>:
DJB2 family (Bernstein)
  • HA_DJB2_32
  • HA_DJB2_64
Java The constants of this family are not available.
MD4 familyHA_MD4
MD5 familyHA_MD5_128
Please note: this type of algorithm is currently deprecated.
MURMUR family
  • HA_MURMUR_1 Murmur algorithm version 1: 32-bit hash result
  • HA_MURMUR_2 Murmur algorithm version 2: 32-bit hash result
  • HA_MURMUR_2_64A Murmur algorithm version 2: 64-bit hash result optimized for 64-bit processors
  • HA_MURMUR_2_64B Murmur algorithm version 2: 64-bit hash result optimized for 32-bit processors
  • HA_MURMUR_2_A Murmur version 2 incremental algorithm: 32-bit hash result
  • HA_MURMUR_2_BIG_ENDIAN Murmur algorithm version 2 for big-endian machine: 32-bit hash result
  • HA_MURMUR_2_ALIGNE Murmur algorithm version 2 for aligned machine: 32-bit hash result
  • HA_MURMUR_3_32 Murmur algorithm version 3: 32-bit hash result
  • HA_MURMUR_3_128_X86 Murmur algorithm version 3: 128-bit hash result optimized for 32-bit processors
  • HA_MURMUR_3_128_X64 Murmur algorithm version 3: 128-bit hash result optimized for 64-bit processors
Java The constants of this family are not available.
RIPEMD family
  • HA_RIPEMD_128
  • HA_RIPEMD_160
Java The constants of this family are not available.
SHA family
  • HA_SHA_160 (also called SHA-1)
  • HA_SHA_256 (FIPS PUB 198 specifications)
  • HA_SHA_256_DOUBLE
  • HA_SHA_384
  • HA_SHA_512
SHA-3 family
  • HA_SHA3_224
  • HA_SHA3_256
  • HA_SHA3_384
  • HA_SHA3_512
TIGER family
  • HA_TIGER_128
  • HA_TIGER_160
  • HA_TIGER_192
Java The constants of this family are not available.
WHIRLPOOL familyHA_WHIRLPOOL
Java Not available.
CKSUM family
  • HA_CKSUM_8
  • HA_CKSUM_16
  • HA_CKSUM_32
  • HA_CKSUM_64
Java The constants of this family are not available.
  • MD4 / MD5 / SHA / RIPEMD algorithms: classic cryptographic hash functions.
  • TIGER / WHIRLPOOL algorithms: hash functions with very good cryptographic properties, optimized for 64-bit (but can be used in 32-bit).
  • CKSUM algorithms: hash functions with no cryptographic properties, to be used only for minimal checks or hash tables.
  • DJB2 algorithm (Bernstein): string-only hash functions with no cryptographic properties, to be used only for minimal checks or hash tables. Few risks to get an identical hash.
  • MURMUR algorithm: very fast hash functions with no cryptographic properties. This algorithm is used by the "bloom filter" of bitcoin wallets.
<String>: Character string
String on which the calculation will be performed. This parameter can contain binary characters.

Calculating a hash with message authentication (HMAC/MURMUR algorithm) Ocultar los detalles

<Result> = HashString(<Type of algorithm> , <String> , <Secret key>)
<Result>: Buffer
Result of <String> hashing with the <Type of algorithm> algorithm. The length of this string depends on the algorithm used. For example, if the HA_HMAC_SHA_256 constant is used, the result will contain 32 bytes.
Warning: this result may contain characters that cannot be displayed.
<Type of algorithm>: Integer constant
Indicates the type of algorithm (HMAC or MURMUR) used to hash the <String>:
MD4 familyHA_HMAC_MD4

MD5 familyHA_HMAC_MD5_128
Please note: this type of algorithm is currently deprecated.
MURMUR family
  • HA_MURMUR_1 Murmur algorithm version 1: 32-bit hash result
  • HA_MURMUR_2 Murmur algorithm version 2: 32-bit hash result
  • HA_MURMUR_2_64A Murmur algorithm version 2: 64-bit hash result optimized for 64-bit processors
  • HA_MURMUR_2_64B Murmur algorithm version 2: 64-bit hash result optimized for 32-bit processors
  • HA_MURMUR_2_A Murmur version 2 incremental algorithm: 32-bit hash result
  • HA_MURMUR_2_BIG_ENDIAN Murmur algorithm version 2 for big-endian machine: 32-bit hash result
  • HA_MURMUR_2_ALIGNE Murmur algorithm version 2 for aligned machine: 32-bit hash result
  • HA_MURMUR_3_32 Murmur algorithm version 3: 32-bit hash result
  • HA_MURMUR_3_128_X86 Murmur algorithm version 3: 128-bit hash result optimized for 32-bit processors
  • HA_MURMUR_3_128_X64 Murmur algorithm version 3: 128-bit hash result optimized for 64-bit processors
Java The constants of this family are not available.
RIPEMD family
  • HA_HMAC_RIPEMD_128
  • HA_HMAC_RIPEMD_160
Java The constants of this family are not available.
SHA family
  • HA_HMAC_SHA_160
  • HA_HMAC_SHA_256
  • HA_HMAC_SHA_256_DOUBLE
  • HA_HMAC_SHA_384
  • HA_HMAC_SHA_512
SHA-3 family
  • HA_HMAC_SHA3_224
  • HA_HMAC_SHA3_256
  • HA_HMAC_SHA3_384
  • HA_HMAC_SHA3_512
TIGER family
  • HA_HMAC_TIGER_128
  • HA_HMAC_TIGER_160
  • HA_HMAC_TIGER_192
Java The constants of this family are not available.
WHIRLPOOL familyHA_HMAC_WHIRLPOOL
Java Not available.
  • MD4 / MD5 / SHA / RIPEMD algorithms: classic cryptographic hash functions.
  • TIGER / WHIRLPOOL algorithms: hash functions with very good cryptographic properties, optimized for 64-bit (but can be used in 32-bit).
  • MURMUR algorithm: very fast hash functions with no cryptographic properties. This algorithm is used by the "bloom filter" of bitcoin wallets.
<String>: Character string
String on which the calculation will be performed. This parameter can contain binary characters.
<Secret key>: Character string or Integer or Secret string
Authentication key of message.
  • If an HMAC algorithm is used, this parameter must be a string.
  • If a MURMUR algorithm is used, the key must be an integer.
Novedad versión 2025
Cadenas secretas: Si utiliza el almacén de cadenas secretas, el tipo de cadena secreta utilizado para este parámetro puede ser:
  • Buffer - ASCII o Buffer - UTF-8,
  • ANSI string - Latin,
  • ANSI o Unicode string,
  • Unicode string.
Para obtener más información sobre las cadenas secretas y el almacén, consulte Almacén de cadenas secretas.
Java This parameter must not be an empty string.
WindowsLinux

Calculating a hash using a key derivation function that takes a salt as parameter (PBKDF2) Ocultar los detalles

<Result> = HashString(<Type of algorithm> , <String> , <Salt> , <Iteration> , <Length>)
<Result>: Buffer
Result of <String> hashing with the <Type of algorithm> algorithm.
Warning: this result may contain characters that cannot be displayed.. If this result must be displayed, it can be converted by BufferToHexa.
<Type of algorithm>: Integer constant
Specifies the type of pseudo-random algorithm used by PBKDF2 to hash <String>:
MD4 familyHA_PBKDF2_HMAC_MD4
MD5 familyHA_PBKDF2_HMAC_MD5_128
Please note: this type of algorithm is currently deprecated.
RIPEMD family
  • HA_PBKDF2_HMAC_RIPEMD_128
  • HA_PBKDF2_HMAC_RIPEMD_160
SHA family
  • HA_PBKDF2_HMAC_SHA_160
  • HA_PBKDF2_HMAC_SHA_256
  • HA_PBKDF2_HMAC_SHA_256_DOUBLE
  • HA_PBKDF2_HMAC_SHA_384
  • HA_PBKDF2_HMAC_SHA_512
SHA-3 family
  • HA_PBKDF2_HMAC_SHA3_224
  • HA_PBKDF2_HMAC_SHA3_256
  • HA_PBKDF2_HMAC_SHA3_384
  • HA_PBKDF2_HMAC_SHA3_512
TIGER family
  • HA_PBKDF2_HMAC_TIGER_128
  • HA_PBKDF2_HMAC_TIGER_160
  • HA_PBKDF2_HMAC_TIGER_192
WHIRLPOOL familyHA_PBKDF2_HMAC_WHIRLPOOL
  • MD4 / MD5 / SHA / RIPEMD algorithms: classic cryptographic hash functions.
  • TIGER / WHIRLPOOL algorithms: hash functions with very good cryptographic properties, optimized for 64-bit (but can be used in 32-bit).
<String>: Character string
String on which the calculation will be performed. This parameter can contain binary characters.
<Salt>: Character string
Cryptographic salt used. String (usually random) added to the original string to make it more complex. For example, it makes it possible for two users to use the same password.
<Iteration>: Integer
Number of iterations of the algorithm (10000 by default). This number depends on the power of the computing machine and the complexity of the hash. A minimum of 1000 iterations is generally recommended.
<Length>: Integer
Length of the derived key. By default, corresponds to the size of the key generated by the pseudo-random function. This length is technically unbounded but due to the algorithm, it is limited to (2^32 - 1) * (output length of the algorithm used by PBKDF2).
Observaciones

Notes

  • Two identical character strings will have, for the same type of algorithm, two identical Hashes.
  • The result of the Hash may contain non-displayable characters. These characters will not be visible when using Info or Trace for example.

HashString and UNICODE

  • Caution: Hash functions act at the string byte level. The result for the same type of algorithm will therefore be different in Unicode and ANSI.
  • Cross-platform development To use string hashes across platforms (e.g. a hash generated on iOS and verified on Android or Windows), do not use Unicode strings. Indeed, the Unicode strings do not have the same format according to the platforms. In this case, we advise you to use strings in ANSI or UTF 8 format (and to convert the Unicode strings if necessary).
Java

Availability of algorithms

Java Only the following algorithms are supported:
  • HA_HMAC_MD5_128
  • HA_HMAC_SHA_160, HA_HMAC_SHA_256, HA_HMAC_SHA_384, HA_SHA_HMAC_512
  • HA_HMAC_SHA_256_DOUBLE
  • HA_MD4
  • HA_MD5_128
  • HA_SHA_160, HA_SHA_256, HA_SHA_384, HA_SHA_512
  • HA_SHA_256_DOUBLE
Clasificación Lógica de negocio / UI: Lógica de negocio
Componente: wd300com.dll
Ver también
Versión mínima requerida
  • Versión 11
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Última modificación: 16/05/2025

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