--- /dev/null
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * guarantee it works.
+ */
+#include "tomcrypt.h"
+
+/**
+ @file der_decode_boolean.c
+ ASN.1 DER, decode a BOOLEAN, Tom St Denis
+*/
+
+
+#ifdef LTC_DER
+
+/**
+ Read a BOOLEAN
+ @param in The destination for the DER encoded BOOLEAN
+ @param inlen The size of the DER BOOLEAN
+ @param out [out] The boolean to decode
+ @return CRYPT_OK if successful
+*/
+int der_decode_boolean(const unsigned char *in, unsigned long inlen,
+ int *out)
+{
+ LTC_ARGCHK(in != NULL);
+ LTC_ARGCHK(out != NULL);
+
+ if (inlen < 3 || in[0] != 0x01 || in[1] != 0x01 || (in[2] != 0x00 && in[2] != 0xFF)) {
+ return CRYPT_INVALID_ARG;
+ }
+
+ *out = (in[2]==0xFF) ? 1 : 0;
+
+ return CRYPT_OK;
+}
+
+#endif
+
+/* ref: $Format:%D$ */
+/* git commit: $Format:%H$ */
+/* commit time: $Format:%ai$ */