Module params 

Limits, Algorithm, Version and Params.

Every constant here is transcribed from phc-winner-argon2/include/argon2.h and phc-winner-argon2/src/core.h. validate_inputs reproduces validate_inputs() from src/core.c in the same order, because the order decides which error code surfaces first.

Structs

Memory

A memory cost, carried in kibibytes.

Params

Validated Argon2 cost parameters.

ParamsBuilder

Builder for Params.

TagLen

Length of an Argon2 tag (raw hash output), in bytes.

Enums

Algorithm

The Argon2 primitive type (argon2_type).

Version

The Argon2 version (argon2_version).

Constants

ADDRESSES_IN_BLOCK

ARGON2_ADDRESSES_IN_BLOCK: pseudo-random values one address block holds.

BITS512_WORDS_IN_BLOCK

ARGON2_512BIT_WORDS_IN_BLOCK: 512-bit lanes per block (AVX-512).

BLOCK_SIZE

ARGON2_BLOCK_SIZE: memory block size in bytes.

HWORDS_IN_BLOCK

ARGON2_HWORDS_IN_BLOCK: 256-bit lanes per block (AVX2).

MAX_AD_LENGTH

ARGON2_MAX_AD_LENGTH.

MAX_LANES

ARGON2_MAX_LANES.

MAX_MEMORY

ARGON2_MAX_MEMORY = min(0xFFFFFFFF, 1 << ARGON2_MAX_MEMORY_BITS).

MAX_MEMORY_BITS

ARGON2_MAX_MEMORY_BITS = min(32, sizeof(void*) * CHAR_BIT - 10 - 1).

MAX_OUTLEN

ARGON2_MAX_OUTLEN.

MAX_PWD_LENGTH

ARGON2_MAX_PWD_LENGTH.

MAX_SALT_LENGTH

ARGON2_MAX_SALT_LENGTH.

MAX_SECRET

ARGON2_MAX_SECRET.

MAX_THREADS

ARGON2_MAX_THREADS.

MAX_TIME

ARGON2_MAX_TIME.

MIN_AD_LENGTH

ARGON2_MIN_AD_LENGTH.

MIN_LANES

ARGON2_MIN_LANES.

MIN_MEMORY

ARGON2_MIN_MEMORY = 2 * ARGON2_SYNC_POINTS (two blocks per slice).

MIN_OUTLEN

ARGON2_MIN_OUTLEN.

MIN_PWD_LENGTH

ARGON2_MIN_PWD_LENGTH.

MIN_SALT_LENGTH

ARGON2_MIN_SALT_LENGTH.

MIN_SECRET

ARGON2_MIN_SECRET.

MIN_THREADS

ARGON2_MIN_THREADS.

MIN_TIME

ARGON2_MIN_TIME.

OWORDS_IN_BLOCK

ARGON2_OWORDS_IN_BLOCK: 128-bit lanes per block (SSE2).

PREHASH_DIGEST_LENGTH

ARGON2_PREHASH_DIGEST_LENGTH: length of H0.

PREHASH_SEED_LENGTH

ARGON2_PREHASH_SEED_LENGTH: H0 plus the 4-byte block index and 4-byte lane index.

QWORDS_IN_BLOCK

ARGON2_QWORDS_IN_BLOCK: 64-bit words per block.

SYNC_POINTS

ARGON2_SYNC_POINTS: synchronisation points between lanes per pass.

Functions

validate_inputs

validate_inputs() from src/core.c, in the exact same order.