繼續在憑證中使用弱密鑰可能會使您用戶端的敏感資料面臨風險。窮盡密鑰搜尋/殘暴武力攻擊使用弱密鑰的憑證，對網路安全是一種危險。
電腦運算力量增強，更強大密鑰的需求也更大。目前可接受的 RSA (Rivest-Shamir-Adleman) 密鑰的密鑰度是 2048 位元。DigiCert 只發行使用 2048 或更高位元的 RSA 密鑰的憑證。目前可接受的 ECC (橢圓曲線密碼學) 密鑰的密鑰強度是 233 位元。
使用 2048 位元 (或更高) 的 RSA 密鑰或 233 位元 (或更高) 的 ECC 密鑰重新發行或續訂您的憑證。
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