CVE-2019-16143

An issue was discovered in the blake2 crate before 0.8.1 for Rust. The BLAKE2b and BLAKE2s algorithms, when used with HMAC, produce incorrect results because the block sizes are half of the required sizes.

An issue was discovered in the blake2 crate before 0.8.1 for Rust. The BLAKE2b and BLAKE2s algorithms, when used with HMAC, produce incorrect results because the block sizes are half of the required sizes.

When used in conjunction with the Hash-based Message Authentication Code (HMAC), the BLAKE2b and BLAKE2s implementations in `blake2` crate versions prior to v0.8.1 used an incorrect block size (32-bytes instead of 64-bytes for BLAKE2s, and 64-bytes instead of 128-bytes for BLAKE2b), causing them to miscompute the `MacResult`. The v0.8.1 release of the `blake2` crate uses the correct block sizes. Note that this advisory only impacts usage of BLAKE2 with HMAC, and does not impact `Digest` functionality.

An issue was discovered in the blake2 crate before 0.8.1 for Rust. The BLAKE2b and BLAKE2s algorithms, when used with HMAC, produce incorrect results because the block sizes are half of the required sizes.

Se descubrió un problema en la caja blake2 antes de 0.8.1 para Rust. Los algoritmos BLAKE2b y BLAKE2s, cuando se usan con HMAC, producen resultados incorrectos porque los tamaños de bloque son la mitad de los tamaños requeridos