diff options
Diffstat (limited to 'agent/divert-scd.c')
| -rw-r--r-- | agent/divert-scd.c | 48 |
1 files changed, 38 insertions, 10 deletions
diff --git a/agent/divert-scd.c b/agent/divert-scd.c index ceef588fb..1408d65af 100644 --- a/agent/divert-scd.c +++ b/agent/divert-scd.c @@ -417,17 +417,45 @@ divert_pkdecrypt (ctrl_t ctrl, n = snext (&s); if (!n) return gpg_error (GPG_ERR_INV_SEXP); - if (!smatch (&s, n, "rsa")) + if (smatch (&s, n, "rsa")) + { + if (*s != '(') + return gpg_error (GPG_ERR_UNKNOWN_SEXP); + s++; + n = snext (&s); + if (!n) + return gpg_error (GPG_ERR_INV_SEXP); + if (!smatch (&s, n, "a")) + return gpg_error (GPG_ERR_UNKNOWN_SEXP); + n = snext (&s); + } + else if (smatch (&s, n, "ecdh")) + { + if (*s != '(') + return gpg_error (GPG_ERR_UNKNOWN_SEXP); + s++; + n = snext (&s); + if (!n) + return gpg_error (GPG_ERR_INV_SEXP); + if (smatch (&s, n, "s")) + { + n = snext (&s); + s += n; + if (*s++ != ')') + return gpg_error (GPG_ERR_INV_SEXP); + if (*s++ != '(') + return gpg_error (GPG_ERR_UNKNOWN_SEXP); + n = snext (&s); + if (!n) + return gpg_error (GPG_ERR_INV_SEXP); + } + if (!smatch (&s, n, "e")) + return gpg_error (GPG_ERR_UNKNOWN_SEXP); + n = snext (&s); + } + else return gpg_error (GPG_ERR_UNSUPPORTED_ALGORITHM); - if (*s != '(') - return gpg_error (GPG_ERR_UNKNOWN_SEXP); - s++; - n = snext (&s); - if (!n) - return gpg_error (GPG_ERR_INV_SEXP); - if (!smatch (&s, n, "a")) - return gpg_error (GPG_ERR_UNKNOWN_SEXP); - n = snext (&s); + if (!n) return gpg_error (GPG_ERR_UNKNOWN_SEXP); ciphertext = s; |