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Announcement

Correction: EDGAR Cipher Updates Coming January 17, 2022

Jan. 7, 2022

Filers who use third-party custom software solutions to connect to EDGAR should be aware that the SEC will update the ciphers it supports in its Transport Layer Security (TLS) cryptographic protocol on Monday, January 17, 2022.  (Notice of the upcoming upgrade was previously announced on August 25, 2021 and October 27, 2021.)   

TLS relies on cipher sets to encrypt and authenticate data.  These cipher sets, or profiles, are updated from time to time to improve efficiency and security.  Older cipher profiles support out-of-date, weak ciphers.  We strive to use newer, stronger cipher profiles which are compatible with all up-to-date web browsers.  

A table of the SEC’s currently supported ciphers is below.  Ciphers in red italics will not be supported after January 17, 2022.

If you have any questions, please email EDGAR_Escalations@sec.gov. Thank you.

TLS Version

OpenSSL Cipher Name (Hex Code)

IANA Cipher Name

1.3

TLS-AES-256-GCM-SHA384 (0x13,0x02)

TLS_AES_256_GCM_SHA384

1.3

TLS-CHACHA20-POLY1305-SHA256 (0x13,0x03)

TLS_CHACHA20_POLY1305_SHA256

1.3

TLS-AES-128-GCM-SHA256 (0x13,0x01)

TLS_AES_128_GCM_SHA256

1.3

TLS-AES-128-CCM-8-SHA256 (0x13,0x05) (0x13,0x05)

TLS_AES_128_CCM_8_SHA256

1.3

TLS-AES-128-CCM-SHA256 (0x13,0x04)

TLS_AES_128_CCM_SHA256

1.2

ECDHE-ECDSA-AES256-GCM-SHA384 (0xC0,0x2C)

TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384

1.2

ECDHE-ECDSA-AES128-GCM-SHA256 (0xC0,0x2B)

TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256

1.2

ECDHE-RSA-AES256-GCM-SHA384 (0xC0,0x30)

TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384

1.2

ECDHE-RSA-AES128-GCM-SHA256 (0xC0,0x2F)

TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256

1.2

ECDHE-ECDSA-CHACHA20-POLY1305 (0xCC,0xA9)

TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256

1.2

ECDHE-RSA-CHACHA20-POLY1305 (0xCC,0xA8)

TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256

1.2

ECDHE-ECDSA-AES256-SHA384 (0xC0,0x24)

TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384

1.2

ECDHE-ECDSA-AES128-SHA256 (0xC0,0x23)

TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256

1.2

ECDHE-RSA-AES256-SHA384 (0xC0,0x28)

TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384

1.2

ECDHE-RSA-AES128-SHA256 (0xC0,0x27)

TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256

1.2

ECDHE-RSA-AES256-SHA (0xC0,0x14)

TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA

1.2

ECDHE-RSA-AES128-SHA (0xC0,0x13)

TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA

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