13 size_t ref_pkcs7_unpad(const uint8_t in[], size_t len)  in ref_pkcs7_unpad()  argument
15    if(len <= 2)  in ref_pkcs7_unpad()
16       return len;  in ref_pkcs7_unpad()
18    const size_t padding_length = in[len-1];  in ref_pkcs7_unpad()
20    if(padding_length == 0 || padding_length > len)  in ref_pkcs7_unpad()
21       return len;  in ref_pkcs7_unpad()
23    const size_t padding_start = len - padding_length;  in ref_pkcs7_unpad()
25    for(size_t i = padding_start; i != len; ++i)  in ref_pkcs7_unpad()
28          return len;  in ref_pkcs7_unpad()
31    return len - padding_length;  in ref_pkcs7_unpad()
34 size_t ref_x923_unpad(const uint8_t in[], size_t len)  in ref_x923_unpad()  argument
36    if(len <= 2)  in ref_x923_unpad()
37       return len;  in ref_x923_unpad()
39    const size_t padding_length = in[len-1];  in ref_x923_unpad()
41    if(padding_length == 0 || padding_length > len)  in ref_x923_unpad()
42       return len;  in ref_x923_unpad()
43    const size_t padding_start = len - padding_length;  in ref_x923_unpad()
45    for(size_t i = padding_start; i != len - 1; ++i)  in ref_x923_unpad()
49          return len;  in ref_x923_unpad()
53    return len - padding_length;  in ref_x923_unpad()
56 size_t ref_oneandzero_unpad(const uint8_t in[], size_t len)  in ref_oneandzero_unpad()  argument
58    if(len <= 2)  in ref_oneandzero_unpad()
59       return len;  in ref_oneandzero_unpad()
61    size_t idx = len - 1;  in ref_oneandzero_unpad()
68             return len;  in ref_oneandzero_unpad()
77          return len;  in ref_oneandzero_unpad()
80    return len;  in ref_oneandzero_unpad()
83 size_t ref_esp_unpad(const uint8_t in[], size_t len)  in ref_esp_unpad()  argument
85    if(len <= 2)  in ref_esp_unpad()
86       return len;  in ref_esp_unpad()
88    const size_t padding_bytes = in[len - 1];  in ref_esp_unpad()
90    if(padding_bytes == 0 || padding_bytes > len)  in ref_esp_unpad()
92       return len;  in ref_esp_unpad()
95    const size_t padding_start = len - padding_bytes;  in ref_esp_unpad()
96    for(size_t i = padding_start; i != len; ++i)  in ref_esp_unpad()
100          return len;  in ref_esp_unpad()
104    return len - padding_bytes;  in ref_esp_unpad()
107 uint16_t ref_tls_cbc_unpad(const uint8_t in[], size_t len)  in ref_tls_cbc_unpad()  argument
109    if(len == 0)  in ref_tls_cbc_unpad()
112    const size_t padding_length = in[(len-1)];  in ref_tls_cbc_unpad()
114    if(padding_length >= len)  in ref_tls_cbc_unpad()
123       if(in[(len-i-1)] != padding_length)  in ref_tls_cbc_unpad()
131 void fuzz(const uint8_t in[], size_t len)  in fuzz()  argument
138    if(pkcs7.valid_blocksize(len))  in fuzz()
140       const size_t ct_pkcs7 = pkcs7.unpad(in, len);  in fuzz()
141       const size_t ref_pkcs7 = ref_pkcs7_unpad(in, len);  in fuzz()
145    if(x923.valid_blocksize(len))  in fuzz()
147       const size_t ct_x923 = x923.unpad(in, len);  in fuzz()
148       const size_t ref_x923 = ref_x923_unpad(in, len);  in fuzz()
152    if(oneandzero.valid_blocksize(len))  in fuzz()
154       const size_t ct_oneandzero = oneandzero.unpad(in, len);  in fuzz()
155       const size_t ref_oneandzero = ref_oneandzero_unpad(in, len);  in fuzz()
159    if(esp.valid_blocksize(len))  in fuzz()
161       const size_t ct_esp = esp.unpad(in, len);  in fuzz()
162       const size_t ref_esp = ref_esp_unpad(in, len);  in fuzz()
166    const uint16_t ct_cbc = Botan::TLS::check_tls_cbc_padding(in, len);  in fuzz()
167    const uint16_t ref_cbc = ref_tls_cbc_unpad(in, len);  in fuzz()