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openssl/SOURCES/0091-FIPS-RSA-encapsulate.p...

48 lines
1.4 KiB

From afab56d09edb525dd794fcb2ae2295ab7f39400a Mon Sep 17 00:00:00 2001
From: Dmitry Belyavskiy <dbelyavs@redhat.com>
Date: Mon, 21 Aug 2023 16:01:48 +0200
Subject: [PATCH 42/48] 0091-FIPS-RSA-encapsulate.patch
Patch-name: 0091-FIPS-RSA-encapsulate.patch
Patch-id: 91
---
providers/implementations/kem/rsa_kem.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/providers/implementations/kem/rsa_kem.c b/providers/implementations/kem/rsa_kem.c
index 365ae3d7d6..8a6f585d0b 100644
--- a/providers/implementations/kem/rsa_kem.c
+++ b/providers/implementations/kem/rsa_kem.c
@@ -265,6 +265,14 @@ static int rsasve_generate(PROV_RSA_CTX *prsactx,
*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
@@ -308,6 +316,13 @@ static int rsasve_recover(PROV_RSA_CTX *prsactx,
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);
--
2.41.0