Merge "libcrypto_utils: switch to C++."

    },

    host_supported: true,

    srcs: [

        "android_pubkey.c",

        "android_pubkey.cpp",

    ],

    cflags: [

        "-Wall",

// little-endian 32 bit words. Note that Android only supports little-endian

// processors, so we don't do any byte order conversions when parsing the binary

// struct.

typedef struct RSAPublicKey {

struct RSAPublicKey {

  // Modulus length. This must be ANDROID_PUBKEY_MODULUS_SIZE.

  uint32_t modulus_size_words;

  // RSA modulus: 3 or 65537

  uint32_t exponent;

} RSAPublicKey;

};

bool android_pubkey_decode(const uint8_t* key_buffer, size_t size, RSA** key) {

  const RSAPublicKey* key_struct = (RSAPublicKey*)key_buffer;

  BIGNUM* n0inv = BN_new();

  BIGNUM* rr = BN_new();

  if (sizeof(RSAPublicKey) > size ||

      RSA_size(key) != ANDROID_PUBKEY_MODULUS_SIZE) {

  if (sizeof(RSAPublicKey) > size || RSA_size(key) != ANDROID_PUBKEY_MODULUS_SIZE) {

    goto cleanup;

  }