Microsoft announced on April 18, 2019 an updated timeline for 3DES retirement: "Starting July 10, 2019, Office 365 Skype for Business will begin retiring 3DES" Triple Data Encryption Algorithm (TDEA or 3DES) the 20+ year old cipher used in TLS, IPsec and encryption has been marked as weak/vulnerable since 2016 due to its small block size
3DES is a way to reuse DES implementations, by chaining three instances of DES with different keys. 3DES is believed to still be secure because it requires 2 112 operations which is not achievable with foreseeable technology. 3DES is very slow especially in software implementations because DES was designed for performance in hardware. 트리플 DES(Triple DES)는 각 데이터 블록에 데이터 암호화 알고리즘(DES)을 세번 적용한 트리플 데이터 암호화 알고리즘(TDEA 또는 트리플 DEA) 블록 암호에 대한 일반적인 이름이다.. 표준. 트리플 DES의 알고리즘은 여러 표준 문서에 다양하게 정의되어 있다: RFC 1851, The ESP Triple DES Transform (approved in 1995) In cryptography, Triple DES is a block cipher created from the Data Encryption Standard (DES) cipher by using it three times. Triple DES is also known as TDES or, more standard, TDEA (Triple Data Encryption Algorithm ).. When it was discovered that a 56-bit key of DES is not enough to protect from brute force attacks, TDES was chosen as a simple way to enlarge the key space without a need to TripleDES, TDEA or 3DES, is multiple applications of the DES algorithm to plain text data to increase the security of the original DES algorithm.As the name implies, the DES algorithm is applied 3 times. There are two variants of TripleDES: the first is two key; and the second is three key. 2-key TDEA provides approximately 80 bits of security, while 3-key TDEA provides approximately 112 bits 2000年代，des逐漸被3des替代。3des相当于用两个（2tdes）或三个（3tdes）不同的密钥对数据进行三次des加密。2010年代，3des逐漸被更安全的高級加密標準（aes）替代。 2000年10月，在历时接近5年的征集和选拔之后，nist选择了高级加密标准（aes）替代des和3des 。
3DES eller Triple DES är en utökning av krypteringsalgoritmen DES, "Data Encryption Standard", som ger förbättrat skydd genom att kryptera samma data tre gånger med DES med olika krypteringsnycklar.Ett antal varianter finns, vanligast är: DES-EDE3: Klartext krypteras med nyckel1, dekrypteras med nyckel2, krypteras med nyckel3. Vilket ger en total nyckelstorlek på 168 bitar.
트리플 DES(Triple DES)는 각 데이터 블록에 데이터 암호화 알고리즘(DES)을 세번 적용한 트리플 데이터 암호화 알고리즘(TDEA 또는 트리플 DEA) 블록 암호에 대한 일반적인 이름이다.. 표준. 트리플 DES의 알고리즘은 여러 표준 문서에 다양하게 정의되어 있다: RFC 1851, The ESP Triple DES Transform (approved in 1995)
3DES Weakness 3DES is the last remaining 64-bit block cipher we support. 64-bit block ciphers are cryptographically weak in general. The SWEET32 attack was announced last year. While this approach (Birthday Attacks) was always a known approach, especially for 64-bit block ciphers, the SWEET32 announcement gave us a pragmatic demonstration of
TripleDES, TDEA or 3DES, is multiple applications of the DES algorithm to plain text data to increase the security of the original DES algorithm.As the name implies, the DES algorithm is applied 3 times. There are two variants of TripleDES: the first is two key; and the second is three key. 2-key TDEA provides approximately 80 bits of security, while 3-key TDEA provides approximately 112 bits