Software company needs an application icon

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This customer received 30 icon designs from 14 designers. They chose this icon design from Your_Design as the winning design.
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An icon is needed for an web application that helps organizations manage administrative access to servers (https://github.com/lithnet/laps-web/)
The key purpose of the application is around protecting administrative access to Windows servers. Users of this application can check out administrator passwords to systems they are allowed to access. So some ideas you can consider basing a design on may include security, keys, users, passwords, safety, protection, etc.
Submissions must include a 128x128, 64x64, 32x32 and 16x16 pixel representation of the design. The design must look its best at 128x128 pixels, but should appear clean at 32x32 pixels. This is not a mobile app icon.
Important: An appropriate 16x16 pixel representation of the design needs to be included. A simplified version of the main design will be accepted, as we acknowledge there are not a lot of pixels to work with. This version should still have a visual connection to the full size icon. Submissions that simply shrink the larger icons down to 16x16 will not be considered.
Other successful icons we have purchased from DesignCrowd can be seen at https://github.com/lithnet/miis-autosync and
https://github.com/lithnet/ad-password-protection
Updates
Low design quality
Target Market(s)
IT Professionals
Industry/Entity Type
It Professional
Look and feel
Each slider illustrates characteristics of the customer's brand and the style your logo design should communicate.
Elegant
Bold
Playful
Serious
Traditional
Modern
Personable
Professional
Feminine
Masculine
Colorful
Conservative
Economical
Upmarket
Requirements
Must have
- 128x128, 64x64, 32x32 and 16x16 pixel variants of the icon