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Fixes for RSA keygen with SP (no DH). Thanks Sean.

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This commit is contained in:
David Garske
2021-06-04 13:32:59 -07:00
parent 21060afb80
commit 5d33161032
2 changed files with 6 additions and 5 deletions
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8
wolfcrypt/src/sp_int.c
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@@ -68,8 +68,8 @@ This library provides single precision (SP) integer math functions.
* WOLFSSL_SP_PPC Enable PPC assembly speedups
* WOLFSSL_SP_MIPS64 Enable MIPS64 assembly speedups
* WOLFSSL_SP_MIPS Enable MIPS assembly speedups
* WOLFSSL_SP_RISCV64 Enable RISCV64 assmebly speedups
* WOLFSSL_SP_RISCV32 Enable RISCV32 assmebly speedups
* WOLFSSL_SP_RISCV64 Enable RISCV64 assembly speedups
* WOLFSSL_SP_RISCV32 Enable RISCV32 assembly speedups
* WOLFSSL_SP_S390X Enable S390X assembly speedups
* SP_WORD_SIZE Force 32 or 64 bit mode
* WOLFSSL_SP_NONBLOCK Enables "non blocking" mode for SP math, which
@@ -8621,8 +8621,8 @@ int sp_exptmod_ex(sp_int* b, sp_int* e, int digits, sp_int* m, sp_int* r)
if ((!done) && (err == MP_OKAY)) {
/* Use code optimized for specific sizes if possible */
#if defined(WOLFSSL_SP_MATH_ALL) && (defined(WOLFSSL_HAVE_SP_RSA) || \
defined(WOLFSSL_HAVE_SP_DH))
#if (defined(WOLFSSL_SP_MATH) || defined(WOLFSSL_SP_MATH_ALL)) && \
(defined(WOLFSSL_HAVE_SP_RSA) || defined(WOLFSSL_HAVE_SP_DH))
#ifndef WOLFSSL_SP_NO_2048
if ((mBits == 1024) && sp_isodd(m) && (bBits <= 1024) &&
(eBits <= 1024)) {

3
wolfssl/wolfcrypt/sp_int.h
View File

@@ -383,7 +383,8 @@ typedef struct sp_ecc_ctx {
#define SP_INT_DIGITS (((3072 + SP_WORD_SIZE) / SP_WORD_SIZE) + 1)
#endif
#else
#if defined(WOLFSSL_HAVE_SP_DH)
#if defined(WOLFSSL_HAVE_SP_DH) || \
(defined(WOLFSSL_HAVE_SP_RSA) && defined(WOLFSSL_KEY_GEN))
#define SP_INT_DIGITS (((4096 + SP_WORD_SIZE) / SP_WORD_SIZE) + 1)
#else
#define SP_INT_DIGITS (((2048 + SP_WORD_SIZE) / SP_WORD_SIZE) + 1)