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Merge pull request #4506 from gilles-peskine-arm/array-parameters-to-pointers-sha512

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Change sha256 and sha512 output type from an array to a pointer
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Ronald Cron
2021-05-19 12:37:17 +02:00
committed by GitHub
parent f09a66dd78 96d6e08717
commit 0e3ec27598
7 changed files with 32 additions and 22 deletions
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docs/3.0-migration-guide.d/sha512-output-type.md Normal file
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SHA-512 and SHA-256 output type change
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The output parameter of `mbedtls_sha256_finish_ret()`, `mbedtls_sha256_ret()`, `mbedtls_sha512_finish_ret()`, `mbedtls_sha512_ret()` now has a pointer type rather than array type. This makes no difference in terms of C semantics, but removes spurious warnings in some compilers when outputting a SHA-384 hash into a 48-byte buffer or a SHA-224 hash into a 28-byte buffer.
This makes no difference to a vast majority of applications. If your code takes a pointer to one of these functions, you may need to change the type of the pointer.
Alternative implementations of the SHA256 and SHA512 modules must adjust their functions' prototype accordingly.