SHA1UPDATE

Uses a token initialized by the corresponding SHA1INIT function to perform an intermediate hash of an element in a series of texts.

t

A token returned by a previous invocation of SHA1INIT or SHA1UPDATE.

p

A pointer that specifies the address of a buffer to be added to the hash.

n

An expression that specifies the length (in bytes) of that buffer. It must have a computational type and will be converted to type size_t.

This function returns a token (of type POINTER) that can be used with further SHA1UPDATE function and the concluding SHA1FINAL function.

See the description of the SHA1FINAL function for an example.