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openssl3/0091-FIPS-RSA-encapsulate.p...

33 lines
1.1 KiB

diff -up openssl-3.0.1/providers/implementations/kem/rsa_kem.c.encap openssl-3.0.1/providers/implementations/kem/rsa_kem.c
--- openssl-3.0.1/providers/implementations/kem/rsa_kem.c.encap 2022-11-22 12:27:30.994530801 +0100
+++ openssl-3.0.1/providers/implementations/kem/rsa_kem.c 2022-11-22 12:32:15.916875495 +0100
@@ -264,6 +264,14 @@ static int rsasve_generate(PROV_RSA_CTX
*secretlen = nlen;
return 1;
}
+
+#ifdef FIPS_MODULE
+ if (nlen < OPENSSL_RSA_FIPS_MIN_MODULUS_BITS/8) {
+ ERR_raise(ERR_LIB_PROV, PROV_R_KEY_SIZE_TOO_SMALL);
+ return 0;
+ }
+#endif
+
/*
* Step (2): Generate a random byte string z of nlen bytes where
* 1 < z < n - 1
@@ -307,6 +315,13 @@ static int rsasve_recover(PROV_RSA_CTX *
return 1;
}
+#ifdef FIPS_MODULE
+ if (nlen < OPENSSL_RSA_FIPS_MIN_MODULUS_BITS/8) {
+ ERR_raise(ERR_LIB_PROV, PROV_R_KEY_SIZE_TOO_SMALL);
+ return 0;
+ }
+#endif
+
/* Step (2): check the input ciphertext 'inlen' matches the nlen */
if (inlen != nlen) {
ERR_raise(ERR_LIB_PROV, PROV_R_BAD_LENGTH);