SHA1

Classes
struct	SHA1Context

Typedefs
typedef struct SHA1Context	SHA1_CTX

Functions
void	SHA1Init (struct SHA1Context *context)
void	SHA1Update (struct SHA1Context *context, const void *data, uint32_t len)
void	SHA1Final (unsigned char digest[20], struct SHA1Context *context)
void	SHA1Transform (uint32_t state[5], const unsigned char buffer[64])

Detailed Description

SHA1 API. Adapted from https://web.mit.edu/freebsd/head/contrib/wpa/src/crypto/sha1_i.h by Cory McWilliams 2025-09-28.

Typedef Documentation

SHA1_CTX

typedef struct SHA1Context SHA1_CTX

SHA1 context.

Function Documentation

SHA1Final()

void SHA1Final	(	unsigned char	digest[20],
		struct SHA1Context *	context
	)

Calculate the final hash digest.

Parameters

digest	Populated with the digest.
context	The SHA1 context.

SHA1Init()

void SHA1Init

(

struct SHA1Context *

context

)

Initialize a SHA1 context.

Parameters

context

The context.

SHA1Transform()

void SHA1Transform	(	uint32_t	state[5],
		const unsigned char	buffer[64]
	)

Perform a SHA1 transformation.

Parameters

state	The SHA1 state.
buffer	The data.

SHA1Update()

void SHA1Update	(	struct SHA1Context *	context,
		const void *	data,
		uint32_t	len
	)

Calculate an ongoing hash for a block of data.

Parameters

context	The SHA1 context.
data	The data to hash.
len	The length of data.