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-rw-r--r--chip/g/dcrypto/rsa.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/chip/g/dcrypto/rsa.c b/chip/g/dcrypto/rsa.c
index b6128923ef..92e9af4c59 100644
--- a/chip/g/dcrypto/rsa.c
+++ b/chip/g/dcrypto/rsa.c
@@ -91,7 +91,7 @@ static int oaep_pad(uint8_t *output, uint32_t output_len,
else
DCRYPTO_SHA256_init(&ctx, 0);
- DCRYPTO_HASH_update(&ctx, label, label ? strlen(label) : 0);
+ DCRYPTO_HASH_update(&ctx, label, label ? strlen(label) + 1 : 0);
memcpy(phash, DCRYPTO_HASH_final(&ctx), hash_size);
*one = 1;
memcpy(one + 1, msg, msg_len);
@@ -131,7 +131,7 @@ static int check_oaep_pad(uint8_t *out, uint32_t *out_len,
DCRYPTO_SHA1_init(&ctx, 0);
else
DCRYPTO_SHA256_init(&ctx, 0);
- DCRYPTO_HASH_update(&ctx, label, label ? strlen(label) : 0);
+ DCRYPTO_HASH_update(&ctx, label, label ? strlen(label) + 1 : 0);
bad = memcmp(phash, DCRYPTO_HASH_final(&ctx), hash_size);
bad |= padded[0];