修改密钥库密码

$ keytool -storepasswd -keystore keystorename
Enter keystore password:  <old password>
New keystore password: <new password>
Re-enter new keystore password: <new password>

更改密钥库别名密码

$keytool -keypasswd -keystore keystorename -alias aliasname
Enter keystore password:  
New key password for <aliasname>: 
Re-enter new key password for <aliasname>:

注意:

**Keystorename**: name of your keystore(with path if you are indifferent folder) 
**aliasname**: alias name you used when creating (if name has space you can use \) 
for example: $keytool -keypasswd -keystore keystorename -alias stop\ watch

用于完全的编程更改(例如安装程序)，没有提示

#!/bin/bash -eu

NEWPASSWORD=${1}
OLDPASSWORD=${2}

keytool -storepasswd -new "${NEWPASSWORD}" \
  -storepass "${OLDPASSWORD}" \
  -keystore /path/to/keystore

完全披露:我不建议在shell中运行此命令行，因为旧密码和新密码将保存在shell的历史记录中，并且在控制台中可见。

密钥存储库只有一个密码。你可以使用keytool更改它:

keytool -storepasswd -keystore my.keystore

修改密钥密码。

keytool -keypasswd  -alias <key_name> -keystore my.keystore

修改密码，这样我就可以与他人共享密码，并让他们签名

使用keytool:

keytool -storepasswd -keystore /path/to/keystore
Enter keystore password:  changeit
New keystore password:  new-password
Re-enter new keystore password:  new-password

使用实例修改密钥库mykeyfile中的密钥myalias的密码:

keytool -keystore mykeyfile -keypasswd -alias myalias

修改密钥库密码

$ keytool -storepasswd -keystore keystorename
Enter keystore password:  <old password>
New keystore password: <new password>
Re-enter new keystore password: <new password>

更改密钥库别名密码

$keytool -keypasswd -keystore keystorename -alias aliasname
Enter keystore password:  
New key password for <aliasname>: 
Re-enter new key password for <aliasname>:

注意:

**Keystorename**: name of your keystore(with path if you are indifferent folder) 
**aliasname**: alias name you used when creating (if name has space you can use \) 
for example: $keytool -keypasswd -keystore keystorename -alias stop\ watch