2023年12月8日发(作者：)

matlabmd5代码,用MD5或SHA校验Matlab数组，结构，细胞

或文件

DataHash

DATAHASH - Checksum for Matlab array, struct, cell or file

Hash = DataHash(Data, Opt)

Data: Array of built-in types (U)INT8/16/32/64, SINGLE, DOUBLE (real or complex)

CHAR, LOGICAL, CELL, STRUCT (scalar or array, nested), function_handle.

Opt: Options struct:

: 'SHA-1', 'SHA-256', 'SHA-384', 'SHA-512', 'MD2', 'MD5'.

: 'hex', 'HEX', 'double', 'uint8', 'base64'.

:

'file': Data is a file name.

'bin': Only the contents of Data is considered.

Data must be numerical of a CHAR.

'array': Default, contents and type of Data are considered.

Nested CELLs and STRUCTs possible.

Hash: String or numeric vector.

EXAMPLES:

Default: MD5, hex:

DataHash([]) % 7de5637fd217d0e44e0082f4d79b3e73

SHA-1, Base64:

S.a = uint8([]);

S.b = {{1:10}, struct('q', uint64(415))};

= 'base64';

= 'SHA-1';

DataHash(S, Opt) % ZMe4eUAp0G9TDrvSW0/Qc0gQ9/A

This function uses James Tursa's smart and fast TYPECASTX, if installed:

For Matlab 6.5 installing TYPECASTX is obligatory to run DataHash.

Michael Kleder's "Compute Hash" works very similar, but does not accept structs, cells or files:

"CalcMD5" uses a faster C-Mex to create only the MD5 sum for an array or file:

Tested: Matlab 6.5, 7.7, 7.8, 7.13, WinXP, Win7/64, Java: 1.3.1_01, 1.6.0_04.

Bugreports and enhancement requests are welcome.