ISO/IEC 10118-2:20 10规定了利用n位分组密码算法的散列函数。因此，它们适用于已经实现这种算法的环境。在ISO/IEC 18033-3中规定了分组密码。 指定了四个散列函数。第一个提供长度小于或等于n的哈希码，其中n是所用算法的块长度。第二个提供长度小于或等于2n的散列码；第三个提供长度等于2n的散列码；第四个提供长度为3n的散列码。ISO/IEC 10118-2:20 10中规定的所有四个散列函数都符合ISO/IEC 10118-1中规定的通用模型。

ISO/IEC 10118-2:2010 specifies hash-functions which make use of an n-bit block cipher algorithm. They are therefore suitable for an environment in which such an algorithm is already implemented. Block ciphers are specified in ISO/IEC 18033-3. Four hash-functions are specified. The first provides hash-codes of length less than or equal to n, where n is the block-length of the algorithm used. The second provides hash-codes of length less than or equal to 2n; the third provides hash-codes of length equal to 2n; and the fourth provides hash-codes of length 3n. All four of the hash-functions specified in ISO/IEC 10118-2:2010 conform to the general model specified in ISO/IEC 10118-1.