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Signature
insert custom text into posts and emails... 已更新 2007 年 03 月 5 日 下载地址
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  • Signature

    2013-02-05 10:16:52
    Console.WriteLine("Alice created signature:{0}", Convert.ToBase64String(aliceSignature)); if (VerifySignature(aliceData, aliceSignature, alicePubKeyBlob)) { Console.WriteLine("Alice signature ...

     

     public class ECDSAClass
        {
            internal static CngKey aliceKeySignature;
    
            internal static byte[] alicePubKeyBlob;
    
            /// <summary>
            /// 主调度方法,数字签名
            /// </summary>
            public static void MShow()
            {
                CreateKeys();
                byte[] aliceData = Encoding.UTF8.GetBytes("Alice");
                byte[] aliceSignature = CreateSignature(aliceData, aliceKeySignature);
                Console.WriteLine("Alice created signature:{0}", Convert.ToBase64String(aliceSignature));
                if (VerifySignature(aliceData, aliceSignature, alicePubKeyBlob))
                {
                    Console.WriteLine("Alice signature verified successfully");
                }
            }
    
            //验证数据
            private static bool VerifySignature(byte[] data, byte[] aliceSignature, byte[] pubkey)
            {
                bool retvalue = false;
                using (CngKey key = CngKey.Import(pubkey, CngKeyBlobFormat.GenericPublicBlob))
                {
                    var signingAlg = new ECDsaCng(key);
                    retvalue = signingAlg.VerifyData(data, aliceSignature);
                    signingAlg.Clear();
                }
                return retvalue; 
            }
    
            //加密数据
            private static byte[] CreateSignature(byte[] data, CngKey key)
            {
                var signingAlg = new ECDsaCng(key);
                byte[] signature = signingAlg.SignData(data);
                signingAlg.Clear();
                return signature;
            }
    
            /// <summary>
            /// 创建密钥
            /// </summary>
            private static void CreateKeys()
            {
                //创建密钥
                aliceKeySignature = CngKey.Create(CngAlgorithm.ECDsaP256);
                //导出公钥
                alicePubKeyBlob = aliceKeySignature.Export(CngKeyBlobFormat.GenericPublicBlob);
    
            }

    展开全文
  • <div><p>Please tell me how to create signature (type Signature or Sr25519Signature). <pre><code> let sig = api.registry.createType("Signature", alice.sign(message)) let sig = api....
  • Signature Preview

    2020-12-25 20:25:53
    <div><p>When you press the signature preview with nothing in your signature and nothing in your previous, it shows two lines saying No signature set. <p>More of nit picking than an actual bug, but ...
  • Signature Malleability

    2020-12-02 09:02:22
    t horribly malformed, it will be accepted.[1] In addition for every ECDSA signature (r,s), the signature (r, -s (mod N)) is a valid signature of the same message.[2]</p><p>该提问来源于开源项目:...
  • Signature specification

    2020-12-08 22:36:50
    <div><p>Configuration option SIGNATURE_FILE apparently provides no way to refer to my home directory; SIGNATURE_FILE = $HOME/.signature.email (or quoted) does not work. <p>Configuration option ...
  • Scaling Signature

    2021-01-02 13:52:42
    The Tablet signature pad is bigger and easier to use for some but this results in a bigger signature than the mobile phone users so when the signature is regenerated, it is cropped. Is there a way to...
  • Signature Blocks

    2020-12-09 02:38:34
    <div><p>It would be very useful to be able to create clause templates that can represent signature blocks. <p>This would allow a user (end-user or vendor product) to render a CiceroMark contract to ...
  • signature error

    2021-01-02 02:50:47
    <div><p>error: blackarch: signature from "Levon 'noptrix' Kayan (BlackArch Developer) noptrix.net" is invalid error: failed to update blackarch (invalid or corrupted database (PGP ...
  • I try to enable spoofing signature on a PX5 under 6.0.1 but it's not enable. <p>Rom : px5-Malaysk 6.0.1 custom firmware for this device MicroG version : 0.2.4-108-g464d45d from Fdroid Test App: ...
  • m new to web development and am having trouble generating a json of my signature. <p>I'm confused on how to link them all together (I'm guessing the "action=" in the html). I wasn&...
  • <div><p>Add add-signature and verify-signature commands, for adding a signature to an image in its current location, and for verifying an image in place.</p><p>该提问来源于开源项目:containers/...
  • 昨天更新了android studio 打包时遇到两个勾选框,于是开始了解…问题刚开始默认是勾选 V2(Full APK Signature),然后我就打包去测试先了,发现安装失败。之后发现与签名有关系。 12发现android 7.0中引入了APK ...

    昨天更新了android studio 打包时遇到两个勾选框,于是开始了解…

    这里写图片描述

    问题

    刚开始默认是勾选 V2(Full APK Signature),然后我就打包去测试先了,发现安装失败。之后发现与签名有关系。
    
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    发现

    android 7.0中引入了APK Signature Scheme  V2(Full APK Signature),V1(Jar Signature)来自JDK
    
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    两者区别

    V1:仅验证未解压的文件内容,这样APK 签署后可进行许多修改 ,可以移动甚至重新压缩文件。
    
    V2:验证压缩文件的所有字节,而不是单个 ZIP 条目,因此,在签名后无法再更改(包括 zipalign)。
    正因如此,现在在编译过程中,我们将压缩、调整和签署合并成一步完成。
    
    V2的好处:更安全而且新的签名可缩短在设备上进行验证的时间(不需要费时地解压缩然后验证),
    从而加快应用安装速度。如有任何自定义任务篡改 APK 文件或对其进行后处理(无论以任何方式),
    那么V2 签名会有作废的风险,从而导致您的 APK 与 Android 7.0 及更高版本不兼容。
    
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    如何使用

    1、打包签名时只勾选V1签名并不会影响什么,但是在7.0上不会使用更安全的验证方式;
    2、只勾选V2签名7.0以下会直接安装完显示未安装,7.0以上则使用了V2的方式验证
    3、同时勾选V1和V2则所有机型都没问题.
    
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    温馨提示

    为了方便我们每次打包,我们可以设置每次打包默认两个都勾选。在app所对应的build.gradle添加如下配置,再sync Now  即可
    
    signingConfigs {
        debug {
            v1SigningEnabled true
            v2SigningEnabled true
        }
        release {
            v1SigningEnabled true
            v2SigningEnabled true
        }
    }
    
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    希望对遇到的哥们有所帮助!!!

    展开全文
  • Signature Pad Signature Pad is a JavaScript library for drawing smooth signatures. It's HTML5 canvas based and uses variable width Bézier curve interpolation based on Smoother Signatures post by ...
  • mutation signature

    2021-02-24 21:10:54
    本文介绍如何利用deconstructSigs-R包进行mutation signature分析: deconstructSigs|探寻cosmic的独特“气质“mutation signature 菜鸟写的比较详细: 突变频谱探究mutation siganures | 生信菜鸟团 至于突变模式为...

    本文介绍如何利用deconstructSigs-R包进行mutation signature分析:
    deconstructSigs|探寻cosmic的独特“气质“mutation signature

    菜鸟写的比较详细:
    突变频谱探究mutation siganures | 生信菜鸟团

    至于突变模式为什么有96种?
    维基百科真的是百科

    展开全文
  • <div><p>When we tap any finger on signature box area, sometimes it does not produce any dot/image but it still saves the empty signature image in the form of bitmap. I have one action to perform in my...
  • <p>The PurgeLoader load() method signature differs from the parent method signature when cached, see hautelook/AliceBundle#462</p><p>该提问来源于开源项目:theofidry/AliceDataFixtures</p></div>
  • ECDSA signature length

    2020-12-31 14:36:00
    But there are some overhead like ASN.1 encoding in my signature and this makes the signature length to be 71 bytes. So how to verify this signature?</p><p>该提问来源于开源项目:ricmoo/...
  • - fix signature generation: thinko fixed - add signature validation function: unused util the last patch is applied - fix python backtrace / SQL error - add signature validation logic</p><p>该提问...
  • signature_invalid:Failed to validate signature" error. It happened suddenly. it was working fine for couple of days and my app was working very smoothly. <p>today started to get this error. and ...
  • Overlapping of signature

    2020-12-26 04:24:49
    <div><p>I have an issue using lenevo tablet. I have used multiple signature on my app. For some signature it works fine but for some signature I get border overflow of signature. ...
  • JWT signature

    千次阅读 2019-01-31 22:58:47
    JWT signature does not match locally computed signature. JWT validity cannot be asserted and should not be trusted." 背景:在Windows搭建Hygieia,第一次注册没问题。过了几天,重新启动Hygieia,在...

    error while running API "JWT signature does not match locally computed signature. JWT validity cannot be asserted and should not be trusted."

    背景:在Windows搭建Hygieia,第一次注册没问题。过了几天,重新启动Hygieia,在启动UI的时候,就出现了以上异常。

    过程:查找问题,有点盲目,在不断试错。后来,自己冷静下来,仔细分析,我想到浏览器会缓存一些登录数据,例如账号密码等,所以,换个浏览器试试。果然,换了浏览器就可以了。

     

    展开全文
  • ve had to debug a signature failure to discover the wrong key had been used. It would be nice if the KeyInfo from the Signature was used to compare against the public key of the pair we're using ...
  • Signature creation problems

    2020-12-09 01:48:05
    m missing something but the signature creation doesn't seem to actually create a signature. It just checks if the user provided signature is found and logs how many times. It would be great to ...
  • full apk signature是Android studio适配7.0之后出现的 默认都勾选,可适配所有机型http://blog.csdn.net/qq_33373648/article/details/76061787
  • signature verification fails

    2020-11-22 13:10:49
    I am testing with OpenSSL ECDSA signature. The test procedure is to create a ECDSA a signature in OpenSSL, then verify this signature using micro-ecc (publickey and hash is taken from OpenSSL output)....
  • Signature Versions

    2018-02-07 13:27:08
    场景 签名打包遇图提示: ...V1(Jar Signature) ...V2(Full APK Signature) ...APK signature scheme v2 ...Android 7.0引入新的应用签名方案APK Signature Scheme v2,使应用安装时间更快且提供更多针对
  • Force signature version

    2020-12-26 12:31:24
    signature-1" and not "signature-2" ? The problem we're having is that our signatures are stored in s3 and, when we run docker pull image, docker tries signature-2 first, resulting in a...
  • Multiple signature insertion

    2020-11-25 16:47:07
    <p>In my signature I am using [NUMBER] [DATE] and [TIME] fields and my signature starts with a line feed (this is to have space to insert my own text in front of the signature). Maybe one of these is ...
  • Inline slo signature

    2020-12-25 21:23:08
    <div><p>This week, I encountered an IdP that sent me a LogoutResponse containing a signature embedded within the SAMLResponse, instead of split out into separate Signature/SigAlg query parameters....
  • <div><p><code>process_signature</code> gets the argspec from the object itself, so any docstring-specified signature ...gets silently dropped. <p>See e.g. ...

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