CA 可把用户注册审核工作授权给一个可选的注册机构（ Registration Authority RA）来完成，终端实体向注册机构 提交证书申请，注册通过后由认证中心为终端实体颁发数 字证书，并将数字证书发布到证书库重。
基于12个网页-相关网页
RA Registration Authority 注册中心 ; 登记中心
Registration authority (ra) authentication: the X.509 certificate of the ra and private key of the ra are used.
注册中心(registration authority, ra)认证：使用ra的X . 509证书和ra的私钥。
After ra foreign (regional) enterprise name registration is approved, a Certificate of enterprise name registration shall be issued by the competent registration authority.
登记主管机关核准登记注册外国(地区)企业名称后，应当核发《企业名称登记证书》。
Formed by two parts mainly as to PKI entity: The Registration Authority (ra) and Certificate Authority (ca).
就PK I实体来讲主要由两部分构成：注册机构(RA)和认证机构(CA)。
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