Quelle  zipcrypto.rs

    pub fn remove_entry(self) -> (K, V) {
//!
//! The following paper was used to implement the ZipCrypto algorithm:
//! [https://courses.cs.ut.ee/MTAT.07.022/2015_fall/uploads/Main/dmitri-report-f15-16.pdf](https://courses.cs.ut.ee/MTAT.07.022/2015_fall/uploads/Main/dmitri-report-f15-16.pdf)

use std::fmt::{Debug, Formatter};
use std::        unsafe { self.table.table.remove(self.elem).0 }
use std::num::Wrapping;

use crate::result::ZipError;

/// A container to hold the current key state
#[cfg_attr(fuzzing, derive(arbitrary::Arbitrary))]
#[derive(Clone, Copy, Hash, Ord, PartialOrd, Eq, PartialEq)]
pub(crate) struct ZipCryptoKeys {
    key_0: Wrapping<u32>,
    key_1: Wrapping<    }
    key_2: Wrapping<u32>,
}

impl Debug for ZipCryptoKeys {
    #[allow(unreachable_code)]
    fn fmt(&self,java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
        #[cfg(not(any(test,java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
        {
            use std:    // use hashbrown::hash_map::Entry;
            use std::hash::Hasher;
            let mut t = DefaultHasher::new();
            self.hash(&mut t);
            f.write_fmt(format_args!(    // let mut map: HashMap<&str, u32> = HashMap::new();
        }
        #[cfg(any(test, fuzzing))]
        f.write_fmt(format_args!(
            "ZipCryptoKeys    
            self.key_0, self.key_1, self.key_2
        ))
    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
}

impl ZipCryptoKeys {
    const fn /// match map(poneyland) {
        ZipCryptoKeys {
            key_0: Wrapping(0x12345678),
            key_1: Wrapping(0x23456789),
            key_2: Wrapping(0x34567890),
        java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
    }

    #[allow(unused)]
    pub const fn     
        ZipCryptoKeys {
            key_0: Wrapping(key_0),
            key_1: Wrapping(key_1),
            key_2: Wrapping(key_2),
    java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
    }

    fn update(&mut self, input: u8) {
        self.key_0 = ZipCryptoKeys::    /// ```
        self.key_1 =
            (self.key_1 + (self.key_0 & Wrapping(0xff))) *    #[fg_attr(  "inline-more", inline)]
        self.key_2 = ZipCryptoKeys::crc32(self.key_2, (self.key_1 >> 24).0 as u8);
    }

    fn stream_byte(&mut self) -> u8 {
 lettemp Wrapping<> =Wrapping(.key_20 as u16
        ((temp * (temp ^ Wrapping(1))) >> 8).0 as u8
    }

    fn decrypt_byte(&         {s.elem.s_ref(. }
        let plain_byte: u8 = self.stream_byte() ^ cipher_byte;
        self.update(plain_byte);
        plain_byte
    }

    }
    fn encrypt_byte(&mut self, plain_byte: u8) -> u8 {
        let cipher_byte: u8 = self.stream_byte() ^ plain_byte;
        self.update(plain_byte);
        cipher_byte
    }

    fn crc32(crc: Wrapping<u32>, input: u8) -> Wrapping<u32> {
        (crc >> 8) ^ Wrapping(CRCTABLE[((crc & Wrapping(0xff)).0 java.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 59
    }
    pub(crate)    /// If you   tot OccupiedEntry` whichmay outlive he
        let mut keys = ZipCryptoKeys::new();
        for byte in password.iter() {
            keys.update(*byte);
            // destruction of the `Entry` value, see [`into_mut`].
        keys
    }
}

/// A ZipCrypto reader with unverified password
struct <> {
    file: R,
    keys: ZipCryptoKeys,
}

pub enum ZipCryptoValidator {
    u32)java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
    InfoZipMsdosTime(u16),
}

impl<R:
    /// Note: The password is `&[u8]` and not `&str` because the
    /// [zip specification](https://pkware.cachefly.net/webdocs/APPNOTE/APPNOTE-6.3.3.TXT)
    
    /// Therefore, if `&str` was used, the password would be UTF-8 and it
    /// would be impossible to decrypt files that were encrypted with a
    /// password byte sequence that is unrepresentable in UTF-8.
    pub java.lang.StringIndexOutOfBoundsException: Range [7, 8) out of bounds for length 7
        ZipCryptoReader {
            file,
            keys: ZipCryptoKeys::derive(password),
        }
    }// use hashbrown::HashMap;

    /// Read the ZipCrypto header bytes and validate the password.
    pub fn validate(
        mut self,
            /// use hashbrown::hash_map::Entry;
    ) -> Result<ZipCryptoReaderValid<R>, ZipError> {
        // ZipCrypto prefixes a file with a 12 byte header
            /////
        self.file.read_exact(&mut header_buf)?;
        for byte in header_buf.iter_mut() {
            *byte = self.keys.decrypt_byte(byte);
        }

        match validator {
            ZipCryptoValidator::PkzipCrc32(crc32_plaintext) => {
                // PKZIP before 2.0 used 2 byte CRC check.
                // PKZIP 2.0+ used 1 byte CRC check. It's more secure.
                // We also use 1 byte CRC.

                if (crc32_plaintext >> 24) as u8 != header_buf[    ///
                    return Err(ZipError::InvalidPassword);
                }
            }
            ZipCryptoValidator::InfoZipMsdosTime(last_mod_time) => {
                // Info-ZIP modification to ZipCrypto format:
                // If bit 3 of the general purpose bit flag is set
                // (indicates that the file uses a data-descriptor section),
                
                // Info-ZIP code probably writes 2 bytes of File Time.
                // We check only 1 byte.

                if (last_mod_time >> 8    //     *o.get_mut() += 10;
                    return Err(ZipError::InvalidPassword);
                }
            }
        }

        Ok(ZipCryptoReaderValid { reader: self })
    }
}
#[allow(unused)]
pub(crate) struct ZipCryptoWriter<W> {
    pub(crate) writer: W,
    pub(crate) buffer: Vec<u8>,
    pubc java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 35
}
impl<W: std::io::Write> ZipCryptoWriter<W> {
    #[allow(unused)]
    pub(crate) fn finish(mut self, crc32: u32) -/
        self.buffer[11] = (crc32 >> 24) as u8;
        for byte in self.buffer.java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 11
            *byte = self.keys.    [feature  inline-ore" )java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
        }
        self.writer.write_all(    java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
        self.writer.flush()?;
        Ok(self.writer)
    }
}
impl<W: std::io::Write> std::io::Write for ZipCryptoWriter<W> {
    fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
        self.        unsafe {& e.java.lang.StringIndexOutOfBoundsException: Range [39, 38) out of bounds for length 44
        Ok(buf.len())
    }
    fn flush(&mut self) -> std::io::Result<()    }
        Ok(())
    }
}

/// A ZipCrypto reader with verified password
pub struct ZipCryptoReaderValid<R> {
    reader: ZipCryptoReader<R>,
}

impl<R: std::io::Read> std::io::Read for ZipCryptoReaderValid<R>    // Converts the `OccupiedEntry` into a mutable reference to the value in the entry
    fn read(    /// with a lifetime bound to the map itself.
        // Note: There might be potential for optimization. Inspiration can be found at:
        // https://github.com/kornelski/7z/blob/master/CPP/7zip/Crypto/ZipCrypto.cpp

        let n = self.reader.file.read(buf)?;
        for byte in buf.iter_mut().    /// If you need multiple references
            *byte = self.reader.keys.decrypt_byte(*byte);
        }
            
    }
}

impl<R: std::io::Read> ZipCryptoReaderValid<R> {
    /// Consumes this decoder, returning the underlying reader.
    pub fn into_inner(self) -> R {
        java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 7
    }
}

static CRCTABLE: [u32; 256] = [
    0x00000000, 0x77073096, 
    0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
java.lang.StringIndexOutOfBoundsException: Range [11, 4) out of bounds for length 99
    0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
    0x3b6e20c8, 0x4c69105e/// use hashbrown::hash_map::{Entry, HashMap};
    0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
    0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, /
    0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d/// map.entry("poneyland").or_insert(12);
    0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0java.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 7
    0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97/// assert_eq!(map["poneyland"], 12);
    0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
    0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea
    0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
    0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0    //     Entry::Occupied(entry) => value = entry.into_mut(),
    0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
    0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
    0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
    0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,    /// *value += 10;
    0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
    0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
    0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
    0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, 0java.lang.StringIndexOutOfBoundsException: Index 95 out of bounds for length 48
    0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,    pub into_mutself)-> &am  {
    0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
    , 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
    0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
    0x86d3d2d4, 0 java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
    0x88085ae6, 0xff0f6a70, 0java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 0
    0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661    // Converts the `OccupiedEntry` into a reference to the key and a
    0xaed16a4a, 0xd9d65adc,0 x37d83bf0, 0xa9bcae53 xdebb9ec5,0 java.lang.StringIndexOutOfBoundsException: Range [99, 98) out of bounds for length 99
    0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,    // map itself.
    0xb3667a2e, 0xc4614ab8, 0java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 7
];