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CloudFront 支援 4096-bit RSA 的 SSL/TLS certificate 了

 8 months ago
source link: https://blog.gslin.org/archives/2023/12/24/11550/cloudfront-%e6%94%af%e6%8f%b4-4096-bit-rsa-%e7%9a%84-ssl-tls-certificate-%e4%ba%86/
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CloudFront 支援 4096-bit RSA 的 SSL/TLS certificate 了

CloudFront 總算支援 4096-bit 的 RSA SSL/TLS certificate 了:「Amazon CloudFront now supports 4096-bit RSA TLS certificates」。

翻了一下 AWS ACM,看起來是 2020 年以前就支援 4096-bit RSA SSL/TLS certificate 了,CloudFront 晚蠻多的...

另外查了一下目前的強度,NSA 給出 2048-bit RSA 對到 112-bit strength,而 3072-bit RSA 對到 128-bit strength;至於 4096-bit RSA,目前是估算大約在 140-bit strength,有點微妙的數字。

看起來主要應該是給 compliance 需求使用的,有些舊的 library 未必支援 ECC 類的演算法,還是得透過拉高 RSA key size 來增加安全性。

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CloudFront 支援 3072 bit RSA 憑證

看到 CloudFront 支援 3072 bit RSA certificate 的消息:「Amazon CloudFront announces support for 3072-bit RSA certificates」。 2048 bit 在一般情況算是夠用,畢竟現在的紀錄也才到 829 bit (參考「RSA Factoring Challenge」): 1024-bit RSA keys are equivalent in strength to 80-bit symmetric keys, 2048-bit RSA keys to 112-bit symmetric keys, 3072-bit RSA keys to 128-bit symmetric keys, and 15360-bit…

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Amazon RDS 的 TLS 連線所使用的 CA 要更新了

Amazon RDS 的 TLS (SSL) 連線所使用的 CA 要更新了:「Rotate Your SSL/TLS Certificates Now – Amazon RDS and Amazon Aurora Expire in 2024」。 如果沒有開 TLS 連線的話是不受影響 (像是內網裸奔),但如果有在用 TLS 的話就要注意一下了,看起來得手動更新處理。 比較特別的是新的 CA 簽的超長: Most SSL/TLS certificates (rds-ca-2019) for your DB instances will expire in 2024 after the certificate update in 2020. In December…

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CloudFront 宣佈支援 ECDSA 的 Certificate

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a611ee8db44c8d03a20edf0bf5a71d80?s=49&d=identicon&r=gAuthor Gea-Suan LinPosted on December 24, 2023Categories AWS, CDN, Cloud, Computer, Murmuring, Network, Privacy, Security, ServiceTags amazon, aws, cdn, certificate, cloud, cloudfront, compliance, key, length, rsa, security, service, size, ssl, tls

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