[B! base64] siroccoã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

sirocco id:sirocco

base64ã«é–¢ã™ã‚‹siroccoã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (7)

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æ–‡å—åˆ—ã‚’Base64ã§ã‚¨ãƒ³ã‚³ãƒ¼ãƒ‰ï¼ãƒ‡ã‚³ãƒ¼ãƒ‰ã™ã‚‹ã«ã¯ï¼Ÿï¼»C#ã€VBï¼½
é€£è¼‰ç›®æ¬¡ Base64ã¯ã€ãƒžãƒ«ãƒãƒã‚¤ãƒˆæ–‡å—åˆ—ã‚„ã€ç”»åƒãªã©ã®ãƒã‚¤ãƒŠãƒªãƒ»ãƒ‡ãƒ¼ã‚¿ã‚’ãƒ†ã‚ã‚¹ãƒˆå½¢å¼ã«å¤‰æ›ã™ã‚‹æ‰‹æ³•ã®1ã¤ã§ã€ãƒ¡ãƒ¼ãƒ«ã®é€ä¿¡ãªã©ã§å¤šãç”¨ã„ã‚‰ã‚Œã‚‹ã€‚ .NET Frameworkä¸Šã§Base64ã‚’åˆ©ç”¨ã™ã‚‹ã«ã¯Convertã‚¯ãƒ©ã‚¹ï¼ˆSystemåå‰ç©ºé–“ï¼‰ãŒä½¿ãˆã‚‹ãŒã€ã“ã®éš›ã«æ—¥æœ¬èªžãªã©ã®ãƒžãƒ«ãƒãƒã‚¤ãƒˆæ–‡å—åˆ—ã‚’æ£ã—ãæ‰±ã†ã«ã¯ã€UTF-8ã‚„Shift-JISã¨ã„ã£ãŸæ–‡å—ã‚³ãƒ¼ãƒ‰ã‚’è€ƒæ…®ã—ãªã‘ã‚Œã°ãªã‚‰ãªã„ã€‚ ãã“ã§æ¬¡ã®ã‚ˆã†ãªã‚¯ãƒ©ã‚¹ã‚’ä½œã£ã¦ãŠãã¨ã€Base64ã®å‡¦ç†ãŒç°¡å˜ã«è¡Œãˆã‚‹ã€‚ using System; using System.Text; public class MyBase64str { private Encoding enc; public MyBase64str(string encStr) { enc = Encoding.GetEncoding(encStr); } public str
sirocco 2009/07/23
base64

.net
ãƒªãƒ³ã‚¯
Introduction of MIME
MIME ã®åŸºç¤Ž IIJ æŠ€è¡“ç ”ç©¶æ‰€ å±±æœ¬å’Œå½¦ ä»Šå›žã¯ MIME ã®è©±ã‚’ã—ã¾ã—ã‚‡ã†ã€‚ ä»¥ä¸‹ã§ã¯ã€è¨€èªžã¨æ–‡å—ã‚³ãƒ¼ãƒ‰ã‚’åŒä¸€è¦–ã—ã¦èª¬æ˜Žã—ã¾ã™ã€‚ (ã‚‚ã¡ã‚ã‚“ä¸¡è€…ãŒé•ã†ã“ã¨ã¯é‡ã€…æ‰¿çŸ¥ã—ã¦ã„ã¾ã™ãŒã€ ä»Šå›žã¯åŒä¸€è¦–ã—ãŸæ–¹ãŒåˆ†ã‹ã‚Šã‚„ã™ã„ã¨æ€ã„ã¾ã™ã€‚) ãƒ†ã‚ã‚¹ãƒˆãƒ»ãƒ¡ãƒ¼ãƒ«ã®å•é¡Œç‚¹ MIME ãŒç™»å ´ã—ãŸ 1992 å¹´ä»¥å‰ã® RFC822 (ç¾ RFC 2822)ã§å®šã‚ã‚‰ã‚ŒãŸãƒ¡ãƒ¼ãƒ«ã¯ã€ ãƒ†ã‚ã‚¹ãƒˆãƒ»ãƒ¡ãƒ¼ãƒ«ã¨å‘¼ã°ã‚Œã¦ã„ã¾ã™ã€‚ MIME ã¯ãƒ†ã‚ã‚¹ãƒˆãƒ»ãƒ¡ãƒ¼ãƒ«ã®å•é¡Œã‚’è§£æ±ºã™ã‚‹ãŸã‚ã«è€ƒãˆå‡ºã•ã‚Œã¾ã—ãŸã€‚ ã“ã“ã§ã¯ã€ãã®å•é¡Œã¨ã¯ä½•ã ã£ãŸã®ã‹ã‚’ãŠã•ã‚‰ã„ã—ã¦ãŠãã¾ã—ã‚‡ã†ã€‚ å•é¡Œãã®1: ãƒ†ã‚ã‚¹ãƒˆãƒ»ãƒ¡ãƒ¼ãƒ«ã§ã¯ãƒ˜ãƒƒãƒ€ãŒ ASCII ã«é™å®šã•ã‚Œã¦ã„ã¾ã—ãŸã€‚ ãã“ã§ã€ä¾‹ãˆã°æ—¥æœ¬èªžã®ã‚ˆã†ãªè‹±èªžä»¥å¤–ã®æ–‡å—åˆ—ã‚’ å…¥ã‚Œã‚‰ã‚Œã¾ã›ã‚“ã§ã—ãŸã€‚ å•é¡Œãã®2: ãƒ†ã‚ã‚¹ãƒˆãƒ»ãƒ¡ãƒ¼ãƒ«ã§ã¯æœ¬æ–‡ã‚‚ ASCII ã«é™å®šã•ã‚Œã¦ã„ã¾ã—ãŸã€‚ éžè‹±èªžåœã§ã¯ã€ã“ã‚Œã¯ã‚ã¾ã‚Šã«ã‚‚ä¸
sirocco 2006/04/20
base64

MIME
ãƒªãƒ³ã‚¯
Multipurpose Internet Mail Extensions - Wikipedia
Multipurpose Internet Mail Extensionï¼ˆå¤šç›®çš„ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆãƒ¡ãƒ¼ãƒ«æ‹¡å¼µï¼‰ã¯ã€è¦æ ¼ä¸ŠUS-ASCIIã®ãƒ†ã‚ã‚¹ãƒˆã—ã‹ä½¿ç”¨ã§ããªã„ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆã®é›»åãƒ¡ãƒ¼ãƒ«ã§ã•ã¾ã–ã¾ãªãƒ•ã‚©ãƒ¼ãƒžãƒƒãƒˆï¼ˆæ›¸å¼ï¼‰ã‚’æ‰±ãˆã‚‹ã‚ˆã†ã«ã™ã‚‹è¦æ ¼ã§ã‚ã‚‹ã€‚é€šå¸¸ã¯MIMEï¼ˆãƒžã‚¤ãƒ ï¼‰ã¨ç•¥ã•ã‚Œã‚‹ã€‚RFCÂ 2045ã€RFCÂ 2046ã€RFCÂ 2047ã€RFCÂ 4288ã€RFCÂ 4289[1]ã€RFCÂ 2049 ã§è¦å®šã•ã‚Œã¦ã„ã‚‹ã€‚ ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆã§ãƒ¡ãƒ¼ãƒ«ã®æ›¸å¼ã‚’å®šã‚ã¦ã„ã‚‹ RFCÂ 5322 (æ—§ RFCÂ 822ã€RFCÂ 2822)ã§ã¯ã€è‹±æ•°å—ã¨ã„ãã¤ã‹ã®è¨˜å·ã‚’7 ãƒ“ãƒƒãƒˆã§è¡¨ç¾ã™ã‚‹ã€ŒUS-ASCIIã€ã¨å‘¼ã°ã‚Œã‚‹æ–‡å—ã‚³ãƒ¼ãƒ‰ã‚’åˆ©ç”¨ã—ã€1è¡Œã‚ãŸã‚Š1000 ãƒã‚¤ãƒˆ(æ”¹è¡Œã‚’å«ã‚€)ã®ãƒ†ã‚ã‚¹ãƒˆãƒ‡ãƒ¼ã‚¿ã—ã‹è¨±ã—ã¦ã„ãªã„ã€‚ãã®ãŸã‚ã€è¦æ ¼ã«ä¸é©åˆã«ãªã‚‹ã‚ˆã†ãªé•·ã„è¡Œã€US-ASCIIã ã‘ã§è¡¨ç¾ã§ããªã„æ–‡å—ã‚„ã€ãƒã‚¤ãƒŠãƒªãƒ‡ãƒ¼ã‚¿ã€ç”»åƒã€éŸ³å£°
sirocco 2006/04/20
base64

MIME
ãƒªãƒ³ã‚¯
Jcode.pmã¨base64.pmã®ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«
sirocco 2006/04/20
CPAN

base64
ãƒªãƒ³ã‚¯
http://homepage2.nifty.com/cs/linux_command/command/mimencode.html
sirocco 2006/04/20
base64

MIME
ãƒªãƒ³ã‚¯
BASE64 ã«ã¤ã„ã¦
MIMEè¦æ ¼ã£ã¦ï¼Ÿ ã“ã®ã¨ã“ã‚ã€ã“ã®ãƒšãƒ¼ã‚¸ãŒä½•æ•…ã‹ã—ã‚‰å‡„ããƒ’ãƒƒãƒˆã—ã¦ã„ã‚‹ã®ã§ã€ç¶ºéº—ã«ã—ã¦ã¿ãŸã‚Šã—ã¾ã—ãŸâ™ª ã¤ã„ã§ã«æ–‡ç« ã‚‚è‹¥å¹²ã®ä¿®æ£ã£ã¨ï¼ˆç¬‘ï¼‰ BASE64 ï¼Ÿã£ã¦èžããªã‚Œãªã„è¨€è‘‰ã ã¨æ€ã„ã¾ã™ãŒã€æ™®æ®µãªã«ã’ãªãä½¿ç”¨ã—ã¦ã„ã‚‹ãƒ¡ãƒ¼ãƒ«ã§ä½¿ç”¨ã•ã‚Œã¦ã„ãŸã‚Šã™ã‚‹ã®ã§ã™ã€‚ ã€Œãƒ¡ãƒ¼ãƒ«ã§æ·»ä»˜ãƒ•ã‚¡ã‚¤ãƒ«ã‚’é€ã‚‹ã€ã£ã¦ä»Šã§ã¯å½“ãŸã‚Šå‰ã®æ§˜ã«ä½¿ã£ã¦ã„ã¾ã™ãŒã€1993å¹´å‰ã¾ã§ã¯å®Ÿã¯è¡Œãˆãªã‹ã£ãŸã®ã£ã¦çŸ¥ã£ã¦ã¾ã—ãŸï¼Ÿã€€ãã‚‚ãã‚‚ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆã§ä½¿ç”¨ã•ã‚Œã‚‹æ–‡å—ã¨ã„ã†ã®ã¯ã€7bitã‚³ãƒ¼ãƒ‰ã‚’å‰æã§é€šä¿¡ã‚’è¡Œã£ã¦ã„ãŸãŸã‚ã«ã€wordã®ãƒ•ã‚¡ã‚¤ãƒ«ã‚„ã€jpgç”»åƒãªã‚“ã‹ã®ãƒã‚¤ãƒŠãƒªãƒ•ã‚¡ã‚¤ãƒ«ã‚’é€ã‚‹äº‹ãŒã§ããªã‹ã£ãŸã‚“ã§ã™ã€‚ ãã‚Œã«ã€ãƒã‚¤ãƒŠãƒªãƒ•ã‚¡ã‚¤ãƒ«ã‚’é€ã‚‹ã“ã¨ãŒã§ãã¦ã‚‚ãã‚Œã‚’å—ã‘å–ã‚‹å´ãŒãƒ»ãƒ»ãƒ»ãƒ»ã¨ã‹ã€ã„ã‚ã‚†ã‚‹ãƒ—ãƒãƒˆã‚³ãƒ«ãŒç„¡ã‹ã£ãŸãŸã‚ã€1993å¹´ã« MIMEè¦æ ¼ï¼ˆRFC1521ï¼RFC1522ï¼‰ã¨å‘¼ã°ã‚Œã‚‹æ‰‹é †ãŒåˆ¶å®šã•ã‚Œã¾ã—ãŸã€‚ã“ã‚Œã«ã‚ˆã£ã¦ç¾åœ¨ã®ã€Œãƒ¡ãƒ¼ãƒ«ã§æ·»
sirocco 2006/04/20
base64

MIME
ãƒªãƒ³ã‚¯
MIME::Base64 - base64æ–‡å—åˆ—ã®ã‚¨ãƒ³ã‚³ãƒ¼ãƒ‰ã¨ãƒ‡ã‚³ãƒ¼ãƒ‰ - perldoc.jp
MIME::Base64 - base64æ–‡å—åˆ—ã®ã‚¨ãƒ³ã‚³ãƒ¼ãƒ‰ã¨ãƒ‡ã‚³ãƒ¼ãƒ‰ æ¦‚è¦Â¶ use MIME::Base64; $encoded = encode_base64('Aladdin:open sesame'); $decoded = decode_base64($encoded); èª¬æ˜ŽÂ¶ This module provides functions to encode and decode strings into the Base64 encoding specified in RFC 2045 - MIME (Multipurpose Internet Mail Extensions). The Base64 encoding is designed to represent arbitrary sequences of octets in a form that need not
sirocco 2006/04/20
perl

base64
ãƒªãƒ³ã‚¯
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