AboutMeet Base64 Decode and Encode, a simple online tool that does exactly what it says: decodes from Base64 encoding as well as encodes into it quickly and easily. Base64 encode your data without hassles or decode it into a human-readable format. Base64 encoding schemes are commonly used when there is a need to encode binary data, especially when that data needs to be stored and transferred over media that are designed to deal with text. This encoding helps to ensure that the data remains intact without modification during transport. Base64 is used commonly in a number of applications including email via MIME, as well as storing complex data in XML or JSON. Advanced options
All communications with our servers come through secure SSL encrypted connections (https). We delete uploaded files from our servers immediately after being processed and the resulting downloadable file is deleted right after the first download attempt or 15 minutes of inactivity (whichever is shorter). We do not keep or inspect the contents of the submitted data or uploaded files in any way. Read our privacy policy below for more details. Completely free Our tool is free to use. From now on, you don't need to download any software for such simple tasks. Details of the Base64 encoding Base64 is a generic term for a number of similar encoding schemes that encode binary data by treating it numerically and translating it into a base-64 representation. The Base64 term originates from a specific MIME-content transfer encoding. DesignThe particular choice of characters to make up the 64 characters required for Base64 varies between implementations. The general rule is to choose a set of 64 characters that is both 1) part of a subset common to most encodings, and 2) also printable. This combination leaves the data unlikely to be modified in transit through systems such as email, which were traditionally not 8-bit clean. For example, MIME's Base64 implementation uses A-Z, a-z, and 0-9 for the first 62 values, as well as "+" and "/" for the last two. Other variations, usually derived from Base64, share this property but differ in the symbols chosen for the last two values; an example is the URL and filename safe "RFC 4648 / Base64URL" variant, which uses "-" and "_". ExampleHere's a quote snippet from Thomas Hobbes's Leviathan: "Man is distinguished, not only by his reason, but ..." This is represented as an ASCII byte sequence and encoded in MIME's Base64 scheme as follows: TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb24sIGJ1dCAuLi4= In the above quote the encoded value of Man is TWFu. Encoded in ASCII, the letters "M", "a", and "n" are stored as the bytes 77, 97, 110, which are equivalent to "01001101", "01100001", and "01101110" in base-2. These three bytes are joined together in a 24 bit buffer producing the binary sequence "010011010110000101101110". Packs of 6 bits (6 bits have a maximum of 64 different binary values) are converted into 4 numbers (24 = 4 * 6 bits) which are then converted to their corresponding values in Base64. As this example illustrates, Base64 encoding converts 3 uncoded bytes (in this case, ASCII characters) into 4 encoded ASCII characters. http://serpongs.net/tools/endecode/ 기능 → URL, BASE64 인코딩/디코딩 MD5, SHA-1 암호화 http://ostermiller.org/calc/encode.html 기능 → URL, HEX, BASE64 인코딩/디코딩 http://www.md5encryption.com 기능 → MD5 암호화 http://www.hashkiller.co.uk/md5-decrypter.aspx http://md5decryption.com 기능 → MD5 복호화 http://www.sha1-online.com 기능 → SHA-1 암호화 http://www.hashkiller.co.uk/sha1-decrypter.aspx 기능 → SHA-1 복호화 저작자표시비영리 'Web > Other' 카테고리의 다른 글
|