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SourceVuESP-IDF Framework and ExamplesmbedTLShash_mprime()

hash_mprime() function

Generate Hash(M') as in RFC 8017 page 43 points 5 and 6.

Syntax

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Summary

Declaration

from rsa.c:1694

static int hash_mprime(const unsigned char *hash, size_t hlen, const unsigned char *salt, size_t slen, unsigned char *out, mbedtls_md_type_t md_alg);

Arguments

Argument

Description

hash

the input hash

hlen

length of the input hash

salt

the input salt

slen

length of the input salt

out

the output buffer - must be large enough for \p md_alg

md_alg

message digest to use

References

Code

Location

Referrer

static int hash_mprime(const unsigned char *hash, size_t hlen,

rsa.c:1694

ret = hash_mprime(hash, hashlen, salt, slen, p, hash_id);

rsa.c:2198

rsa_rsassa_pss_sign_no_mode_check()

ret = hash_mprime(hash, hashlen, p, observed_salt_len,

rsa.c:2631

mbedtls_rsa_rsassa_pss_verify_ext()

Call Tree

hash_mprime() is called by 2 functions and calls 7 functions:

rsa_rsassa_pss_sign_no_mode_check()

mbedtls_rsa_rsassa_pss_verify_ext()

hash_mprime()

mbedtls_md_info_from_type()

Data Use

hash_mprime():

hash_mprime()

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