!!! Overview
[{$pagename}] (RACE Integrity Primitives Evaluation) is a [Hash Function] that was designed in the framework of the [European Union] project in [1992|Year 1992] and other variants [1996|Year 1996][{$pagename}] based on [MD4] [Hash Function] in the original the COSIC research group in Leuven, Belgium published four strengthened variants: RIPEMD-128, RIPEMD-160, RIPEMD-256, and RIPEMD-320.

* The first RIPEMD was not considered as a good hash function because of some design flaws which leads to some major security problems one of which is the size of output that is 128 [bit] which is too small and easy to break. 
* RIPEMD-128 the design flaw is removed but the output is still 128 bit which makes it less secure.
* [RIPEMD-160] is the next version which increases the output length to 160 bit and increases the security level of the [Hash Function]. This function is designed to work as a replacement for 128-bit hash functions [MD4], [MD5], and RIPEMD-128.
** is in the [Bitcoin] standard ([Bitcoin address]) and on some other [Bitcoin] derived [Cryptocurrency].
* RIPEMD-256 and 
* RIPEMD-320 are extension of RIPEMD-128 which provide same security as RIPEMD-160 and RIPEMD-128 which is designed for application which prefer large [hash] value rather than more security level.

RIPEMD-160 is a [cryptographic] [Hash Function] based upon the [Merkle-Damgard construction].

!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]
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* [#1] - [RIPEMD|Wikipedia:RIPEMD|target='_blank'] - based on information obtained 2020-09-24 
* [#2] - [RIPEMD Hash Function|https://www.geeksforgeeks.org/ripemd-hash-function/|target='_blank'] - based on information obtained 2020-09-24 
* [#2] - [Bitcoin Tests - Addresses|https://gobittest.appspot.com/Address|target='_blank'] - based on information obtained 2020-09-24