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Use SHA256 openssl signatures

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This commit is contained in:
Peter Eckersley 2016-01-11 12:53:39 -08:00
parent e17bb27508
commit be653e8e6b
2 changed files with 9 additions and 9 deletions
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12
tools/half-sign.c
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@ -12,18 +12,18 @@
// To compile:
// gcc half-sign.c -lssl -lcrypto -o half-sign
// Sign with SHA1
#define HASH_SIZE 20
// Sign with SHA256
#define HASH_SIZE 32
void usage() {
printf("half-sign <private key file> [binary hash file]\n");
printf("\n");
printf(" Computes and prints a binary RSA signature over data given the SHA1 hash of\n");
printf(" Computes and prints a binary RSA signature over data given the SHA256 hash of\n");
printf(" the data as input.\n");
printf("\n");
printf(" <private key file> should be PEM encoded.\n");
printf("\n");
printf(" The input SHA1 hash should be %d bytes in length. If no binary hash file is\n", HASH_SIZE);
printf(" The input SHA256 hash should be %d bytes in length. If no binary hash file is\n", HASH_SIZE);
printf(" specified, it will be read from stdin.\n");
exit(1);
}
@ -41,7 +41,7 @@ void sign_hashed_data(EVP_PKEY *signing_key, unsigned char *md, size_t mdlen) {
if ((!ctx)
|| (EVP_PKEY_sign_init(ctx) <= 0)
|| (EVP_PKEY_CTX_set_rsa_padding(ctx, RSA_PKCS1_PADDING) <= 0)
|| (EVP_PKEY_CTX_set_signature_md(ctx, EVP_sha1()) <= 0)) {
|| (EVP_PKEY_CTX_set_signature_md(ctx, EVP_sha256()) <= 0)) {
fprintf(stderr, "Failure establishing ctx for signature\n");
exit(1);
}
@ -108,7 +108,7 @@ int main(int argc, char *argv[]) {
exit(1);
}
if (fread(buffer, HASH_SIZE, 1, input) != 1) {
perror("half-sign: Failed to read SHA1 from input\n");
perror("half-sign: Failed to read SHA256 from input\n");
exit(1);
}

6
tools/release.sh
View file

@ -34,8 +34,8 @@ else
echo Releasing developer version "$version"...
fi
if [ "$RELEASE_OPENSSL_KEY" = "" ] ; then
RELEASE_OPENSSL_KEY="`realpath \`dirname $0\``/eff-pubkey.pem"
if [ "$RELEASE_OPENSSL_PUBKEY" = "" ] ; then
RELEASE_OPENSSL_PUBKEY="`realpath \`dirname $0\``/eff-pubkey.pem"
fi
RELEASE_GPG_KEY=${RELEASE_GPG_KEY:-A2CFB51FA275A7286234E7B24D17C995CD9775F2}
# Needed to fix problems with git signatures and pinentry
@ -85,7 +85,7 @@ git checkout "$RELEASE_BRANCH"
letsencrypt-auto-source/build.py
# and that it's signed correctly
if ! openssl dgst -sha256 -verify $RELEASE_OPENSSL_KEY -signature \
if ! openssl dgst -sha256 -verify $RELEASE_OPENSSL_PUBKEY -signature \
letsencrypt-auto-source/letsencrypt-auto.sig \
letsencrypt-auto-source/letsencrypt-auto ; then
echo Failed letsencrypt-auto signature check on "$RELEASE_BRANCH"