}
return 1;
+ case EVP_CTRL_GET_IVLEN:
+ *(int *)ptr = actx->nonce_len;
+ return 1;
+
case EVP_CTRL_AEAD_SET_IVLEN:
if (arg <= 0 || arg > CHACHA20_POLY1305_MAX_IVLEN)
return 0;
12, /* iv_len, 96-bit nonce in the context */
EVP_CIPH_FLAG_AEAD_CIPHER | EVP_CIPH_CUSTOM_IV |
EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT |
- EVP_CIPH_CUSTOM_COPY | EVP_CIPH_FLAG_CUSTOM_CIPHER,
+ EVP_CIPH_CUSTOM_COPY | EVP_CIPH_FLAG_CUSTOM_CIPHER |
+ EVP_CIPH_CUSTOM_IV_LENGTH,
chacha20_poly1305_init_key,
chacha20_poly1305_cipher,
chacha20_poly1305_cleanup,