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Fix wc_ecc_import_unsigned cdef to match wolfSSL header 

scripts/build_ffi.py declared qx, qy, and d as `byte*` while the
wolfSSL header (ecc.h) declares all three as `const byte*`. wolfSSL is
const-correct here and does not mutate the inputs, so there is no
observable bug today, but the non-const cdef let CFFI hand a writable
pointer into Python bytes storage on EccPublic.decode_key_raw and
EccPrivate.decode_key_raw calls. Update the cdef to match the header.

F-3087
pull/118/head
Andrew Hutchings 2026-05-11 12:29:15 +01:00
parent 000472761c
commit cd9cdeba5f
1 changed files with 2 additions and 2 deletions
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4
scripts/build_ffi.py
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@ -1092,8 +1092,8 @@ def build_ffi(local_wolfssl, features):
int wc_ecc_import_x963(const byte* in, word32 inLen, ecc_key* key);
int wc_ecc_export_private_raw(ecc_key* key, byte* qx, word32* qxLen,
byte* qy, word32* qyLen, byte* d, word32* dLen);
int wc_ecc_import_unsigned(ecc_key* key, byte* qx, byte* qy,
byte* d, int curve_id);
int wc_ecc_import_unsigned(ecc_key* key, const byte* qx, const byte* qy,
const byte* d, int curve_id);
int wc_ecc_export_public_raw(ecc_key* key, byte* qx, word32* qxLen,
byte* qy, word32* qyLen);